AC 428 Fastback Coupe (1965-73)

Overview: The **AC 428 Fastback Coupe** was a bold attempt by AC Cars to transition from raw performance machines like the Cobra to a **luxurious grand tourer**. It was meant to **expand AC’s market reach**, offering a refined alternative to high-end GT cars like the **Aston Martin DB6 and Jensen Interceptor**. 

However, despite its **stunning Frua-designed bodywork** and **powerful Ford 428 V8**, the model faced **high production costs** and logistical challenges. AC had to **ship chassis to Italy for bodywork**, then return them to England for final assembly, making the process **expensive and inefficient**. 

Ultimately, the **AC 428 failed to achieve commercial success**, with only **49 fastbacks and 29 convertibles** produced. The **energy crisis of the early 1970s** and **Ford’s decision to stop direct engine supply** further sealed its fate. While it didn’t secure AC’s future, it remains a **rare and desirable collector’s car**, showcasing AC’s ambition to blend **British engineering, Italian styling, and American muscle**. 

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COMMON FAULTS

Please Note: Common Faults in Regularly Used Vehicles vs. Low-Mileage Stored Vehicles that have been used consistently over many years, accumulating approximately 10,000–12,000 miles annually, are more prone to common faults due to regular wear and tear. These issues typically arise from the natural aging of components subjected to frequent use, such as engine parts, suspension systems, brakes, and tires. In contrast, vehicles with low mileage that have been stored or preserved are likely to experience different types of issues. These vehicles are often better maintained to ensure their longevity and may avoid some of the typical wear-and-tear problems seen in regularly driven cars. However, they can still face unique challenges such as degradation of rubber seals, corrosion from prolonged inactivity, or fuel system issues caused by old or stagnant fuel. The AC 428 Fastback Coupe, also known as the AC Frua, is a classic car with its share of common faults. Here are some issues that owners have reported: 

1. **Overheating**: The engine can generate a lot of heat, leading to overheating issues, especially at high speeds or during extended periods of driving. 

2. **Electrical Problems**: Some owners have experienced issues with the electrical system, including faulty wiring and problems with the alternator. 

3. **Suspension Issues**: The suspension system can be prone to wear and tear, leading to handling problems and a rough ride. 

4. **Oil Leaks**: Oil leaks are a common problem, particularly around the engine and transmission. 

5. **Body Panel Fitment**: Due to the hand-built nature of the car, some owners have reported issues with the fitment of body panels. Despite these faults, the AC 428 Fastback Coupe remains a beloved classic car for its performance and iconic design. 

Generations/Trim Levels

Please Note: Generations and Trim Levels Across Countries Generations and trim levels of vehicles often vary between countries as manufacturers tailor models to meet the preferences and requirements of specific markets. For example, a trim level designated as “GL” in the UK might be labelled as “XS” in another country. Due to these regional differences, the information provided on this site pertains exclusively to UK-specific products. 

The AC 428 Fastback Coupe, also known as the AC Frua, was produced between 1965 and 1973. It didn't have distinct generations like some other cars, but it did come in a couple of different body styles and trim levels: 

1. **Fastback Coupe**: The most common version, known for its sleek and stylish design. 

2. **Convertible**: A less common version, offering an open-top driving experience. The AC 428 Fastback Coupe didn't have specific trim levels like modern cars, but there were variations in terms of engine options and interior features.

 The main engine options were: 

1. **427 cubic inch (7.0 L) Ford FE V8**: Early models were equipped with this engine 

2. **428 cubic inch (7.0 L) Ford FE V8**: Later models featured this engine, which provided more torque and power. These variations highlight the AC 428 Fastback Coupe's status as a high-performance GT car with a luxurious touch. The AC 428 Fastback Coupe was fitted with a **428 cubic inch (7.0 L) Ford FE V8 engine**. This engine delivered a power output of approximately **345 horsepower**. 

The AC 428 Fastback Coupe offered impressive performance for its time. Here are some key performance figures: **Engine**: 428 cubic inch (7.0 L) Ford FE V8",- 

**Power Output**: Approximately 345 horsepower 

**Top Speed**: Over 140 mph (225 km/h) 

**0-60 mph (0-96 km/h) Acceleration**: Less than 6 seconds **0-100 mph (0-161 km/h) Acceleration**: Approximately 14.5 seconds These figures highlight the AC 428 Fastback Coupe's status as a high-performance GT car, combining luxury with powerful American V8 horsepower. 

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Designer/Dimensions: The AC 428 Fastback Coupe, also known as the AC Frua, was designed by **Pietro Frua**, an Italian coachbuilder. Dimensions of the AC 428 Fastback Coupe: **Wheelbase**: 95 inches (2,413 mm) **Length**: 176 inches (4,470 mm) **Width**: 68 inches (1,727 mm) **Height**: 49 inches (1,245 mm) **Curb Weight**: 3,150 lbs (1,430 kg) 

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Where Manufactured

The **AC 428 Fastback Coupe** had a rather complex manufacturing process. The **chassis** was built at **AC Cars' factory in Thames Ditton, England**. Once completed, it was **shipped to Pietro Frua’s workshop in Italy**, where the bodywork was designed and fitted. After that, the cars were **sent back to England** for final assembly, including the installation of the **Ford 428 V8 engine and interior trim**. 

This **multi-country production process** contributed to the car’s **high costs and limited production numbers**, making it a rare and exclusive grand tourer. 

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Production Total: The total production of the AC 428 Fastback Coupe was **81 cars**. This includes 49 fastback coupes, 29 convertibles, and 3 special-bodied cars. 

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Price New: In 1965, the AC 428 Fastback Coupe had a new price of approximately **£5,896**. To adjust the 1965 price of £5,896 for inflation to 2025, we can use an inflation calculator. According to the Bank of England's inflation calculator, the equivalent value in 2025 would be approximately **£120,000**. 

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Sales: No, the **AC 428 Fastback Coupe** was not a sales success. Despite its **stunning Frua-designed bodywork**, **powerful 7.0L Ford V8**, and **high-performance Cobra-derived chassis**, it struggled in the market due to **high production costs** and **premium pricing**—it was **more expensive than an Aston Martin DB6**. 

Only **49 fastback coupes** and **29 convertibles** were produced between **1965 and 1973**, making it a **rare but commercially unsuccessful model**. The **logistical challenges** of shipping chassis between **England and Italy** for assembly further limited production. Additionally, the **energy crisis of the early 1970s** and **Ford’s decision to stop direct engine supply** sealed its fate. 

While it didn’t secure AC’s future, today it is a **highly desirable collector’s car**, with values steadily increasing. 

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Highest Sales Figures by Country

The **AC 428 Fastback Coupe** was a niche, low-production grand tourer, so detailed country-specific sales figures are scarce. However, based on available records, the majority of sales were concentrated in **the UK**, followed by **Switzerland and the USA**. 

Given its **high price**—more expensive than an Aston Martin DB6—it was primarily sold to **wealthy enthusiasts** rather than in large numbers. Some models were exported to **Germany and France**, but overall, the car remained a **rare sight outside Britain**. 

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Historical Pricing Comparisons

The **AC 428 Fastback Coupe** has seen a steady increase in value over the years, reflecting its rarity and desirability among collectors. Here’s a breakdown of its historical pricing trends:

- **Launch Price (1966-73)**: The fastback was priced at **£4,850**, making it more expensive than an **Aston Martin DB6 (£4,067)** and a **Jensen Interceptor (£3,742)**.

- **Lowest Recorded Sale**: The cheapest AC 428 sold publicly was **£39,375**.

- **Median Price (Since 2020)**: The average sale price has been around **£88,500**.

- **Highest Recorded Sale**: The most expensive AC 428 sold for **£334,562**.

- **Recent Market Trends**: Prices have increased by **3.4% for the coupe** and **2.7% for the convertible** over the past five years.

The AC 428 remains a **highly desirable collector’s car**, with values continuing to rise. 

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Most Favoured Colour

The **most favoured colour** for the **AC 428 Fastback Coupe** appears to be **blue-green metallic**, based on discussions among enthusiasts. Other popular shades included **Ruby Red**, which was a factory finish for some models, and **silver**, which was a common repaint choice in later years. 

Given its rarity, owners often opted for **custom colours**, making it difficult to pinpoint a single dominant shade. 

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Main Rivals (Price): 

The **AC 428 Fastback Coupe** was priced at **£5,573** in the UK, making it more expensive than many of its rivals at the time. Here’s how it compared to key competitors:

- **Aston Martin DB6** – **£4,460**  

- **Jaguar E-Type 4.2 Roadster** – **£2,225**  

- **Jensen Interceptor** – **£3,742**  

- **Iso Grifo** – **£5,000+** (varied by specification)  

- **Maserati Mistral** – **£4,500+**  

The AC 428 was positioned as an **exclusive grand tourer**, but its high price and complex production process limited its commercial success. 

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Main Rivals (Performance): In 1965, the new prices of some of the main rivals of the AC 428 Fastback Coupe in the UK were approximately: 1. **Jaguar E-Type**: £2,097 2. **Aston Martin DB5**: £4,175 3. **Ferrari 275 GTB**: £6,500 4. **Porsche 911**: £2,500 These prices reflect the competitive landscape of the high-performance sports car market during that era. 

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The AC 428 Fastback Coupe had some notable rivals in its time. Here are the performance details of its main competitors: 

Ferrari 365 GTB/4 Daytona (1968-1973) **Engine**: 4.4 L V12","decorations" **Power Output**: Approximately 352 horsepower **Top Speed**: 174 mph (280 km/h) **0-60 mph (0-96 km/h) Acceleration**: 5.4 seconds 

Aston Martin DB6 (1965-1970) **Engine**: 4.0 L Inline-6 **Power Output**: Approximately 282 horsepower **Top Speed**: 148 mph (238 km/h) **0-60 mph (0-96 km/h) Acceleration**: 6.1 seconds 

Maserati Ghibli (1967-1973) **Engine**: 4.7 L V8 **Power Output**: Approximately 330 horsepower **Top Speed**: 165 mph (266 km/h) **0-60 mph (0-96 km/h) Acceleration**: 6.8 seconds 

These rivals were known for their impressive performance and iconic designs, making them some of the most celebrated GT cars of their era. 

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Engine/Performance

The **AC 428 Fastback Coupe** was powered by a **7.0L Ford FE V8 engine**, specifically the **Ford 428 cubic-inch big-block**. Some models were fitted with the **higher-performance Ford 427 side-oiler V8**, which offered **more power and torque**. 

The **428 V8** produced around **345 hp (257 kW) at 4,600 rpm** and **474 lb-ft (642 Nm) of torque at 2,800 rpm**, making it a **formidable grand tourer**. It was paired with either a **4-speed manual Ford Toploader transmission** or a **3-speed automatic Ford C6 transmission**. 

This engine choice gave the AC 428 **exceptional performance**, with a **0-60 mph time of around 6.2 seconds** and a **top speed of 141 mph (227 km/h)**. 

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Historical Advertisements & Marketing Strategy

The **AC 428 Fastback Coupe** was marketed as an **exclusive grand tourer**, blending **British engineering, Italian styling, and American muscle**. AC Cars positioned it as a **luxurious alternative to the Aston Martin DB6 and Jensen Interceptor**, emphasizing its **high-performance Ford 428 V8 engine** and **handcrafted Frua-designed bodywork**.

**Marketing Strategy**

- **Target Audience**: Wealthy enthusiasts looking for a **high-performance GT** with exclusivity.

- **Advertising Channels**: AC Cars primarily advertised in **prestigious automotive magazines** and **luxury lifestyle publications** like *Country Life*.

- **Key Selling Points**:

  - **Race-derived chassis** from the Cobra 427.

  - **Hand-built craftsmanship** with Italian styling.

  - **Exceptional performance**—0-60 mph in **6.2 seconds** and a **top speed of 141 mph**.

  - **Limited production**—only **49 fastbacks and 29 convertibles** made.

**Historical Advertisements**

- **Magazine Features**: The AC 428 was reviewed in *Autocar* and *Motor*, highlighting its **performance and exclusivity**.

- **Showroom Presence**: Displayed at major **European motor shows**, including **Geneva and Paris**, to attract high-end buyers.

- **Celebrity Ownership**: High-profile owners like **Keith Moon of The Who** helped boost its image.

Despite its **strong marketing efforts**, the **high price and complex production process** limited its commercial success. *****

Rarity & Collector Appeal

The **AC 428 Fastback Coupe** is an exceptionally rare and desirable collector’s car. With only **49 fastbacks and 29 convertibles** produced between **1965 and 1973**, its exclusivity has driven strong interest among enthusiasts. 

**Rarity Factors**

- **Limited Production**: Just **78 cars** built, making it one of AC’s rarest models.

- **High Cost**: More expensive than an **Aston Martin DB6**, limiting its original buyer pool.

- **Complex Manufacturing**: Chassis built in **England**, bodywork completed in **Italy**, then returned for final assembly.

- **Conversions**: Some AC 428s were later modified into **Cobra replicas**, further reducing the number of original cars.

**Collector Appeal**

- **Market Value Growth**: Prices have increased by **3.4% for the coupe** and **2.7% for the convertible** over the past five years.

- **Performance & Design**: A **7.0L Ford V8**, Frua-designed bodywork, and a **race-derived chassis** make it a standout GT.

- **Historical Significance**: Represents AC’s attempt to transition from raw performance to luxury grand touring.

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Recorded in UK 2025 I couldn't find specific information on the exact number of AC 428 Fastback Coupes still on the road in the UK. However, you can check the DVLA's [vehicle information service](https://www.gov.uk/get-vehicle-information-from-dvla) for detailed information about specific vehicles. 

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Target Age Group

The **AC 428 Fastback Coupe** was primarily targeted at **wealthy, middle-aged enthusiasts** who sought a **luxurious yet high-performance grand tourer**. Unlike the raw, race-bred **AC Cobra**, the 428 was designed for **comfortable long-distance cruising** while still offering **exceptional speed and power**.

**Key Demographics**

- **Age Range**: Typically **40-60 years old**, appealing to established professionals.

- **Buyer Profile**: Affluent individuals who appreciated **exclusive, hand-built cars**.

- **Market Positioning**: Positioned against **Aston Martin DB6, Jensen Interceptor, and Maserati Mistral**.

- **Luxury Appeal**: Emphasized **Italian styling, British engineering, and American muscle**.

Its **high price**—more expensive than an Aston Martin DB6—meant it was never a mass-market success, but it remains a **highly desirable collector’s car** today. Given your expertise in classic car investment, do you think its exclusivity adds to its appeal?

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Influence of Target Age Group:

The **target age group** for the **AC 428 Fastback Coupe**—primarily **40-60-year-old affluent enthusiasts**—had a significant influence on its **design, pricing, and marketing strategy**.

**Influence on Design**

- **Luxury Over Raw Performance**: Unlike the **AC Cobra**, which was a pure sports car, the 428 was designed as a **comfortable grand tourer**, catering to buyers who valued **refinement and exclusivity**.

- **Italian Styling**: The **Pietro Frua-designed bodywork** gave it a **sophisticated, high-end appeal**, aligning with the tastes of older, wealthier buyers.

- **Automatic Transmission Option**: Many models were fitted with a **Ford C6 automatic gearbox**, making it more suited for relaxed long-distance cruising.

**Influence on Pricing**

- **Premium Positioning**: At **£5,573**, it was **more expensive than an Aston Martin DB6**, reflecting its **exclusive, hand-built nature**.

- **Limited Production**: AC Cars kept production numbers low, ensuring that the 428 remained a **rare and prestigious purchase**.

**Influence on Marketing**

- **Luxury-Focused Advertising**: AC promoted the 428 in **high-end automotive magazines** and **luxury lifestyle publications**, targeting buyers who appreciated **craftsmanship and exclusivity**.

- **Motor Show Presence**: It was showcased at **Geneva and Paris**, reinforcing its **European grand tourer status**.

- **Celebrity Ownership**: High-profile owners like **Keith Moon of The Who** helped enhance its **status appeal**.

Despite these efforts, the **high price and complex production process** limited its commercial success. However, today, its **rarity and exclusivity** make it a **highly desirable collector’s car**. 

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Parts Bin Engineering

The **AC 428 Fastback Coupe** incorporated a mix of **bespoke components** and **parts bin engineering**, borrowing elements from other manufacturers to streamline production and reduce costs.

**Key Parts Bin Components**

- **Engine**: The **Ford 428 cubic-inch V8**, also used in the **Ford Thunderbird and Shelby GT500**, provided reliable American muscle.

- **Transmission**: The **Ford Toploader 4-speed manual** and **Ford C6 automatic** were common in high-performance Fords.

- **Chassis**: Derived from the **AC Cobra 427**, offering race-proven handling.

- **Brakes**: Utilized **Girling disc brakes**, similar to those found on **Jaguar and Aston Martin models**.

- **Suspension**: Featured **coil springs and wishbones**, borrowing elements from **British sports cars**.

- **Interior Components**: Some **switchgear and gauges** were sourced from **British and Italian suppliers**, ensuring a blend of luxury and functionality.

This approach allowed AC to **reduce development costs** while maintaining **high performance and exclusivity**. 

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Spares/Specialists NI 

For locating spares for your AC 428 Fastback Coupe in the UK and Ireland, you can check out the following sources: 

1. **[eBay UK](https://www.ebay.co.uk/itm/354642898527?chn=ps):** Various parts, including brake hoses and other components, are available 

2. **[123spareparts.co.uk](https://www.123spareparts.co.uk/car-brands/ac/428-fastback-parts):** They offer a wide range of spare parts for the AC 428 Fastback. 

As for garage services in Northern Ireland that can maintain your AC 428 Fastback Coupe, here are a few options: 

1. **[McCormick's Garage](https://www.mccormicksgarage.co.uk/):** Located in Newtownards, they provide high-quality garage services, including general repairs and servicing. 

2. **[B. Byrne Garage Services](https://byrnegarage.com/):** Based in Newry, they offer comprehensive car repair services. 

3. **[Commons Brae Garage] ** Located in Belfast, they are a trusted car repair establishment. 

4. **[A C Hawthorne Motors](https://www.hawthornemotors.co.uk/):** Also in Belfast, they specialize in a wide range of garage services, including car servicing and repairs. These garages should be able to help you maintain your AC 428 Fastback Coupe and keep it in top condition. 

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Manufacturer Recommended

Engine Oil: AC Cars originally recommended **SAE 10W-40 engine oil** for the **AC 428 Fastback Coupe (1965-73)**, ensuring optimal lubrication for its **7.0L Ford 428 V8**. The recommended oil change interval was **every 15,000 km or 12 months**, though more frequent changes were advised under demanding conditions.

**Modern Equivalents Available Today**

Several high-quality **SAE 10W-40 oils** meet the original specifications and provide enhanced protection:

- **LIQUI MOLY MoS2 Leichtlauf 10W-40** – Part synthetic, meets **ACEA A3/B3, API SL, API CF** standards.

- **K2 TEXAR XL 10W-40** – Part synthetic, meets **API SL, API CF** standards.

- **Mobil Super 2000 X1 10W-40** – Part synthetic, meets **ACEA A3/B3, API SL, API CF** standards.

- **Shell Helix HX5 15W-40** – Mineral oil alternative, meets **ACEA A3/B3, API SL, API CF** standards.

These oils provide **modern additives** for improved wear protection, sludge prevention, and high-temperature stability. 

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Transmission Oil: AC Cars originally recommended **Ford Type F automatic transmission fluid** for the **AC 428 Fastback Coupe (1965-73)**, ensuring smooth operation of its **Ford C6 automatic transmission**. For manual versions, **SAE 80W-90 gear oil** was typically used.

**Modern Equivalents Available Today**

For **automatic transmissions**:

- **LIQUI MOLY ATF Type F** – Meets **Ford Type F specifications**, ensuring compatibility.

- **Mobil ATF 220** – A high-quality alternative meeting **Dexron II standards**.

- **Total FLUIDMATIC ATF D3** – Suitable for classic Ford transmissions.

For **manual transmissions**:

- **LIQUI MOLY GL5 80W-90** – Meets **API GL-5** standards for high-load applications.

- **Castrol Transmax Manual 80W-90** – Provides excellent wear protection.

- **Motul Gear 300 75W-90** – A synthetic alternative for improved longevity.

These modern equivalents offer **enhanced protection** and **better thermal stability** compared to original formulations. **

Tyres: The **AC 428 Fastback Coupe (1965-73)** originally came fitted with **205 R 15 Avon Textile tyres**, though these were more suited to large saloons like Rolls-Royces rather than sports cars. 

**Recommended Modern Equivalents**

For a more performance-oriented setup, the best modern equivalents include:

- **205 WR 15 PIRELLI CINTURATO CN72** – Ideal for maintaining period-correct handling.

- **215/70 WR 15 PIRELLI CINTURATO CN12** – A slightly wider option for improved grip.

- **215/70 VR 15 Michelin XWX** – A high-performance alternative.

- **215/70 WR 15 PIRELLI CINTURATO P5** – Designed for classic sports cars.

- **215/70 VR 15 Avon CR6ZZ** – A great choice for spirited driving.

**Tyre Pressure Recommendations**

- **Front:** 26 psi  

- **Rear:** 28 psi  

The **AC 428 ran tubed wheels**, so the correct innertube is the **Michelin 15/17H Offset Valve Inner Tube**. 

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Petrol: The **AC 428 Fastback Coupe (1965-73)** was originally designed to run on **high-octane leaded petrol**, typically rated at **98 RON** (Research Octane Number). This was necessary to support the **Ford 428 cubic-inch V8**, which had a **10.5:1 compression ratio** and required fuel with **good knock resistance**.

**Modern Equivalents Available Today**

Since leaded petrol is no longer available, suitable modern alternatives include:

- **Shell V-Power (99 RON)** – Provides excellent combustion stability and engine protection.

- **BP Ultimate Unleaded (97 RON)** – A strong alternative with cleaning additives.

- **Esso Synergy Supreme+ (99 RON)** – High-performance fuel with detergents for engine longevity.

- **Sunoco Race Fuel 100 Octane** – A specialist option for classic high-compression engines.

For **classic car preservation**, many owners use **lead replacement additives** such as:

- **Castrol Valvemaster Plus** – Protects valve seats and boosts octane.

- **Millers VSPe Power Plus** – Enhances fuel quality and prevents knock.

- **Red Line Lead Substitute** – Helps maintain engine durability.

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Racing 

The AC 428 Fastback Coupe, also known as the AC Frua, did not have a significant racing history. Unlike its sibling, the AC Cobra, which was a dominant force in various racing events, the AC 428 was primarily designed as a luxurious grand tourer. Its focus was more on providing a comfortable and high-performance driving experience rather than competing on the racetrack - motor-car.net](https://motor-car.net/ac/item/11212-frua-1965-73). 

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Valuation 

The value of an AC 428 Fastback Coupe in the UK can vary depending on its condition, history, and specifications. As of 2025, the average price for an AC 428 Fastback Coupe is approximately **£79,400**. However, prices can range from **£60,000** to **£175,000** depending on the car's condition. 

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Investment Assessment

The **AC 428 Fastback Coupe (1965-73)** is a **solid investment**, but not without its challenges. Based on market trends and rarity, I would rate it **4 out of 5** as a financial investment.

**Investment Rating Breakdown**

- **Rarity (5/5)** – With only **49 fastbacks and 29 convertibles** produced, it is one of AC’s rarest models.

- **Market Value Growth (4/5)** – Prices have increased by **3.4% for the coupe** and **2.7% for the convertible** over the past five years.

- **Collector Appeal (4/5)** – Its **blend of British engineering, Italian styling, and American muscle** makes it highly desirable.

- **Maintenance & Parts Availability (3/5)** – Some components, especially body panels, are difficult to source.

- **Historical Significance (4/5)** – Represents AC’s attempt to transition from raw performance to luxury grand touring.

While it doesn’t command **Cobra-level prices**, its **exclusivity and performance** make it a **strong long-term investment**. 

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Version with highest Investment Potential

The **AC 428 Convertible** is generally considered to have the **highest investment potential** among the AC 428 models. While both the **Fastback Coupe** and **Convertible** are rare, the **convertible’s desirability** has led to **higher market values** and **stronger appreciation rates**.

**Investment Potential Breakdown**

- **Production Numbers**: Only **29 convertibles** were built, compared to **49 fastbacks**, making them **rarer**.

- **Market Value Growth**: Convertible prices have increased by **2.7%** over the past five years, compared to **3.4% for the coupe**.

- **Collector Appeal**: Open-top grand tourers tend to attract **higher bids** at auctions.

- **Historical Significance**: The convertible was often showcased at **European motor shows**, reinforcing its **luxury appeal**.

Recent auction results indicate that **convertibles consistently sell for higher prices** than fastbacks, making them the **preferred choice for investors**. 

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Clubs 

There are owners clubs in Northern Ireland for the AC 428 Fastback Coupe. Here are a couple of options: 

1. **[AC Owners Club](https://forum.acownersclub.co.uk/forum/index.php?topic=2002.0):** This club is dedicated to AC cars, including the AC 428 fastback Coupe. They have a forum where members can discuss their cars, share experiences, and find support. 

2. **[UK Cobra Club](https://www.ukcobraclub.co.uk/):** While this club is focused on replica AC Cobras, it is a great resource for owners of all Cobra models. They offer information, events, and a community for Cobra enthusiasts. These clubs can provide valuable support, resources, and a sense of community for AC Cobra 427 owners in Northern Ireland. *****

PLEASE NOTE: The information provided below is given in averages across Northern Ireland at the date specified. Petrol reflect average prices for four star fuel in litres.

 

Road Tax: In 1965, the cost of road tax for vehicles in the UK was based on engine size. For the AC 428 Fastback Coupe, which had a large engine, the road tax would have been approximately **£25 per year**. 

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Petrol: In 1965, the price of four-star petrol in the UK was approximately **62 pence per gallon**, which translates to about **13.6 pence per litre** Insurance: In 1965, the average cost of car insurance in the UK for a high-performance car like the AC 428 Fastback Coupe would have been approximately **£100-£120** per year. 

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COST OF LIVING In 1964, the average annual salary in the UK was approximately **£1,000**. In 1965, £1,000 is equivalent to approximately **£20,140** in today's currency. 

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