Audi RS4 [B5] (1999-06)

Overview: The **Audi RS4 B5 (1999-2001)** was a landmark model for Audi, solidifying its reputation for **high-performance wagons** and pushing the boundaries of what an estate car could achieve. Here’s why it was significant:

- **Successor to the RS2 Avant**: The RS4 B5 followed the legendary **Audi RS2**, which was developed in collaboration with **Porsche**. The RS4 had big shoes to fill, and it did so spectacularly.

- **Cosworth-Engineered Powertrain**: Audi enlisted **Cosworth** to refine the **2.7L biturbo V6**, boosting output to **375 HP and 325 lb-ft of torque**.

- **Supercar-Level Performance**: The RS4 could accelerate from **0-62 mph in 4.9 seconds**, with an unrestricted top speed exceeding **170 mph**.

- **Quattro AWD & Handling**: Equipped with **Audi’s advanced quattro system**, multi-link suspension, and twin-piston brake calipers, the RS4 was a force to be reckoned with on twisty roads.

- **Limited Production & Collectibility**: Audi produced only **6,030 units worldwide**, making it a rare and highly sought-after model today.

- **Foundation for Future RS Models**: The RS4 B5 set the stage for Audi’s **RS performance division**, influencing later models like the **RS4 B7, RS6, and RS5**.

It was a **game-changer**, proving that a practical estate car could deliver **supercar-rivaling performance** while maintaining everyday usability. 

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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 **Audi RS4 B5 (1999-2001)** is a high-performance machine, but like any car, it has its share of common faults. Here are some issues owners often encounter: 

- **Excessive Oil Consumption** – Some RS4 B5s suffer from **high oil usage**, often due to **piston ring wear, valve guide wear, or turbocharger seal failure**. 

- **Timing Chain Tensioner Failure** – A **critical component** that keeps the timing chain taut. If it fails, it can lead to **serious engine damage**. 

- **Carbon Build-Up** – The **direct injection system** can cause **carbon deposits** in the intake valves, leading to **reduced performance and rough idling**. 

- **Fuel Pump Failure** – A failing **fuel pump** can cause **starting issues, misfires, or power loss**.

- **Overheating** – Some RS4s experience **cooling system problems**, often due to **radiator blockages or failing water pumps**. 

- **Transmission Issues** – Owners report **delayed shifting, slipping gears, and vibrations**, which can indicate **wear or fluid leaks**. 

- **Suspension & Steering Concerns** – Worn **bushings, control arms, and dampers** can affect handling. 

- **Brake System Failures** – Warped **discs or sticking calipers** can lead to **braking inefficiencies**. 

- **Electrical System Glitches** – Problems with **dashboard lights, power windows, and battery drainage** are common. 

Despite these issues, the **RS4 B5 remains a sought-after classic**, known for its **Cosworth-engineered 2.7L biturbo V6 and quattro AWD**. 

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Generations/Trim Levels 

The **Audi RS4 B5 (1999-2001)** was the **first generation** of the RS4 lineup, setting the foundation for Audi’s high-performance **RS models**. Here’s a breakdown: **Generations** - **B5 RS4 (1999-2001)** – The original RS4, based on the **Audi A4 B5 platform**, featuring a **2.7L biturbo V6**. - **B7 RS4 (2006-2008)** – Introduced a **4.2L naturally aspirated V8**, available in **Sedan, Avant, and Cabriolet**. - **B8 RS4 (2012-2015)** – Continued with the **4.2L V8**, but only in **Avant (Estate) form**. - **B9 RS4 (2017-Present)** – Switched to a **2.9L twin-turbo V6**, offering **450 HP and quattro AWD**. **Trim Levels (B5 RS4)** The **B5 RS4** was only available in **Avant (Estate) form**, with no sedan or coupe variants. However, it featured: - **Standard RS4 Avant** – Equipped with the **2.7L biturbo V6**, **6-speed manual**, and **quattro AWD**. - **Optional Packages** – Some models had **upgraded interior trims, Recaro seats, and sport suspension**. The **RS4 B5** was a **game-changer**, proving that a practical estate car could deliver **supercar-rivaling performance**. 

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Designer/Dimensions 

The **Audi RS4 B5 (1999-2001)** was developed by **Audi AG’s quattro GmbH division**, which specialized in high-performance models. It was based on the **Audi A4 B5 platform**, but heavily modified for **enhanced performance and handling**. 

**Dimensions** - **Length**: **4525 mm (178.15 in)** - **Width**: **1799 mm (70.83 in)** - **Height**: **1386 mm (54.57 in)** - **Wheelbase**: **2607 mm (102.64 in)** - **Front Track**: **1549 mm (60.98 in)** - **Rear Track**: **1530 mm (60.24 in)** - **Curb Weight**: **1620 kg (3571 lbs)** The **RS4 B5** was designed to be a **high-performance estate**, offering **supercar-level acceleration** while maintaining practicality Avant RS4 Specs - Ultimate Specs](https://www.ultimatespecs.com/car-specs/Audi/3805/Audi-A4-%28B5%29-Avant-RS4.html) 2.7 T V6 (380 Hp) quattro](https://www.auto-data.net/en/audi-rs-4-avant-8d-b5-2.7-t-v6-380hp-quattro-4533). 

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Production Total: The **Audi RS4 B5 (1999-2001)** had a total production of **6,030 units**. It was exclusively available as an **Avant (estate/wagon)**, making it a rare and highly sought-after model today.

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Price New: The **Audi RS4 B5 (1999-2001)** had a **new price of £46,500** in the UK when it was launched: Market Watch - PistonHeads UK](https://www.pistonheads.com/news/ph-germancars/audi-rs4-b5-1999-2001--market-watch/36563). This made it a premium performance estate, offering **375 HP** from its **Cosworth-engineered 2.7L biturbo V6**.

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Historical Pricing Comparisons

The **Audi RS4 B5 (1999-2001)** has seen fluctuating values in the UK classic car market. Based on recent valuations, prices range from **£18,000 to £23,000** for well-maintained examples: Market Watch - PistonHeads UK](https://www.pistonheads.com/news/ph-germancars/audi-rs4-b5-1999-2001--market-watch/36563). 

**Historical Pricing Trends**

- **Lowest recorded sale**: **£12,000** (early 2010s) | Used Car Buying Guide - Autocar](https://www.autocar.co.uk/car-news/used-cars/audi-rs4-b5-used-car-buying-guide).

- **Highest recorded sale**: **£23,000** (recent years): Market Watch - PistonHeads UK](https://www.pistonheads.com/news/ph-germancars/audi-rs4-b5-1999-2001--market-watch/36563).

- **Market appreciation**: Prices have steadily risen due to **rarity and collector demand**: Market Watch - PistonHeads UK](https://www.pistonheads.com/news/ph-germancars/audi-rs4-b5-1999-2001--market-watch/36563).

- **Sell-through rate**: High demand for **low-mileage, original-condition models** | Used Car Buying Guide - Autocar](https://www.autocar.co.uk/car-news/used-cars/audi-rs4-b5-used-car-buying-guide).

Factors influencing its value include:

- **Condition** – Well-maintained examples fetch higher prices.

- **Mileage** – Lower mileage cars are more desirable.

- **Rarity** – The RS4 B5 was produced in limited numbers.

- **Modifications** – Original, unmodified cars tend to be worth more.

If you're looking to buy or sell one, checking platforms like **PistonHeads** or **ClassicTrends.eu** can provide more insights: Market Watch - PistonHeads UK](https://www.pistonheads.com/news/ph-germancars/audi-rs4-b5-1999-2001--market-watch/36563). Are you considering purchasing one, or just researching its market value?

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Main Rivals (New Prices)

The **Audi RS4 B5 (1999-2001)** competed with several high-performance rivals in the UK, including the **BMW M3 E46**, **Mercedes-Benz C43 AMG**, and **Subaru Impreza WRX STI**. Here’s how their prices compared:

**New Prices in the UK (1999-2001)**

- **Audi RS4 B5 (1999-2001)** – **£46,500**: Market Watch - PistonHeads UK](https://www.pistonheads.com/news/ph-germancars/audi-rs4-b5-1999-2001--market-watch/36563)

- **BMW M3 E46 (2000-2006)** – **£38,000-£42,000**

- **Mercedes-Benz C43 AMG (1998-2000)** – **£45,000**

- **Subaru Impreza WRX STI (2000-2001)** – **£25,000-£30,000**

The **Audi RS4 B5** was priced competitively against the **C43 AMG**, while the **BMW M3 E46** was slightly more affordable. The **Subaru Impreza WRX STI**, though offering strong performance, was positioned at a lower price point.

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Main Rivals (Performance) 

The **Audi RS4 B5 (1999-2001)** competed with several high-performance rivals in the UK, including the **BMW M3 E46**, **Mercedes-Benz C43 AMG**, and **Subaru Impreza WRX STI**. Here’s how their performance compared: **Performance Comparison** 

- **Audi RS4 B5 (1999-2001)** – **2.7L biturbo V6**, **380 HP**, **0-62 mph in 4.9 sec**, **Top speed: 162 mph**: Market Watch - PistonHeads UK](https://www.pistonheads.com/news/ph-germancars/audi-rs4-b5-1999-2001--market-watch/36563). 

- **BMW M3 E46 (2000-2006)** – **3.2L inline-six**, **343 HP**, **0-62 mph in 5.2 sec**, **Top speed: 155 mph**. 

- **Mercedes-Benz C43 AMG (1998-2000)** – **4.3L V8**, **306 HP**, **0-62 mph in 6.1 sec**, **Top speed: 155 mph**. 

- **Subaru Impreza WRX STI (2000-2001)** – **2.0L turbocharged flat-four**, **280 HP**, **0-62 mph in 5.2 sec**, **Top speed: 143 mph**. 

The **Audi RS4 B5** was one of the fastest estate cars of its time, offering **supercar-level acceleration** while maintaining practicality. 

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Engine 

The **Audi RS4 B5 (1999-2001)** was powered by a **2.7L biturbo V6 engine**, developed with **Cosworth** to deliver impressive performance. 

Here are its key specifications: 

- **Engine Code**: **ASJ / AZR** 

- **Displacement**: **2671 cm³ (163 cu-in)** 

- **Power Output**: **380 HP @ 6100-7000 RPM** 

- **Torque**: **440 Nm (324 lb-ft) @ 2500-6000 RPM** 

- **Aspiration**: **Twin-turbocharged with intercooler** 

- **Compression Ratio**: **9.3:1** 

- **Fuel System**: **Multi-port manifold injection** 

- **Valvetrain**: **DOHC, 5 valves per cylinder** 

- **Transmission**: **6-speed manual** 

- **Drivetrain**: **Quattro AWD** 

This **high-revving V6** was a defining feature of the RS4 B5, offering **strong acceleration, excellent grip, and a thrilling driving experience** 2.7 T V6 (380 Hp) quattro](https://www.auto-data.net/en/audi-rs-4-avant-8d-b5-2.7-t-v6-380hp-quattro-4533) Avant RS4 Specs, Performance, Comparisons - Ultimate Specs](https://www.ultimatespecs.com/car-specs/Audi/3805/Audi-A4-%28B5%29-Avant-RS4.html). 

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Historical Advertisements & Marketing Strategy

The **Audi RS4 B5 (1999-2001)** was marketed as a **high-performance estate car**, blending **practicality with supercar-level performance**. Audi’s marketing strategy during this period focused on several key elements:

**Marketing Strategy**

- **Performance-Oriented Advertising** – Audi emphasized the RS4’s **380 HP Cosworth-tuned biturbo V6**, showcasing its **acceleration and quattro AWD system**.

- **Luxury & Practicality** – Unlike traditional sports cars, the RS4 was positioned as a **family-friendly performance vehicle**, appealing to professionals who wanted **speed without sacrificing usability**.

- **Motorsport Influence** – Audi leveraged its **racing heritage**, linking the RS4 to the **Audi Quattro’s dominance in rallying**.

- **Premium Branding** – Audi’s tagline, **“Vorsprung durch Technik” (Advancement through Technology)**, reinforced its commitment to **engineering excellence**.

**Historical Advertisements**

- **Print Ads & Brochures** – Audi used **sleek, minimalist designs** with bold statements about the RS4’s **quattro system and turbocharged power**.

- **TV Commercials** – Some ads featured the RS4 in **dynamic driving sequences**, showcasing its **grip, acceleration, and refined styling**.

- **Motorsport Connection** – Audi highlighted its **racing success** to promote the RS4, reinforcing its **high-performance DNA**.

Audi’s marketing approach for the RS4 B5 was **subtle yet effective**, targeting **enthusiasts and professionals** who wanted a **high-performance estate**. Would you say the RS4 B5 deserved more recognition in its era? You can explore Audi’s broader marketing strategy [here](https://www.marketingexplainers.com/audis-marketing-strategy-explained/).

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Rarity & Collector Appeal

The **Audi RS4 B5 (1999-2001)** is a rare and highly sought-after classic, particularly among enthusiasts who appreciate its **Cosworth-tuned biturbo V6 and quattro AWD system**. Here’s why it holds collector appeal:

**Rarity**

- Audi produced only **6,030 units**, making it a **low-production performance estate**.

- Of these, **532 were sold in the UK**, with **400 right-hand drive models** | PH Used Buying guide - PistonHeads](https://www.pistonheads.com/gassing/topic.asp?t=1870293).

- Many surviving examples have been **modified**, making **original, unaltered models** more valuable.

**Collector Appeal**

- **Motorsport Heritage** – Developed by **quattro GmbH**, linking it to Audi’s **racing pedigree**.

- **Successor to the RS2 Avant** – The RS4 B5 built upon the **RS2’s legacy**, refining Audi’s **high-performance estate formula**.

- **Increasing Market Value** – Prices have steadily risen due to **rarity and enthusiast demand** | PH Used Buying guide - PistonHeads](https://www.pistonheads.com/gassing/topic.asp?t=1870293).

- **Supercar-Level Performance** – With **380 HP and a 0-62 mph time of 4.9 seconds**, it rivaled **sports cars of its era**.

The **RS4 B5** remains a **cult classic**, blending **practicality with exhilarating performance**. Would you say it deserves legendary status? You can explore more about its rarity [here](https://www.pistonheads.com/gassing/topic.asp?t=1870293).

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Recorded in UK 2025

As of **2025**, there are approximately **340 Audi RS4 B5s currently licensed** in the UK, with **69 registered as SORN (Statutory Off Road Notification)**. If you're looking for more details, you can check the full statistics on [AudiSRS](https://audisrs.com/how-many-b5-s4-rs4-in-the-uk-stats-inside-t68634.html). 

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Target Age Group: The **Audi RS4 B5 (1999-2001)** was aimed at **performance enthusiasts**, particularly those who valued **quattro AWD technology and turbocharged power**. Here’s a breakdown of its target audience:

**Primary Age Group**

- **25-45 years old** – Young professionals and enthusiasts seeking a **high-performance yet practical estate car**.

- **Classic Car Collectors** – Those interested in **rare, motorsport-inspired Audi models**.

- **Motorsport Fans** – Enthusiasts drawn to Audi’s **racing heritage and engineering excellence**.

**Why It Appealed to This Group**

- **Performance & Handling** – The **2.7L biturbo V6** delivered **380 HP**, making it a thrilling drive.

- **Rally Influence** – The RS4 B5 was a spiritual successor to the **Audi Quattro**, attracting fans of **Group B rallying**.

- **Practicality** – As an **Avant (Estate)**, it combined **supercar-level performance with everyday usability**.

The **Audi RS4 B5** was a **cult classic**, blending **speed, handling, and practicality** to meet the expectations of its target audience. Would you say it was ahead of its time? You can explore more about its history [here](https://en.wikipedia.org/wiki/Audi_RS_4).

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Influence of Target Age Group

The **Audi RS4 B5 (1999-2001)** was shaped by the preferences and expectations of its target age group—primarily **25-45-year-old performance enthusiasts**. Here’s how this demographic influenced its design and appeal:

**Influence on Design & Features**

- **Performance Focus** – Younger drivers sought **turbocharged power and quattro AWD**, leading Audi to refine the **2.7L biturbo V6** for **380 HP**.

- **Styling & Practicality** – The demand for a **sporty yet usable car** resulted in the **Avant (Estate) body style**, catering to professionals who needed both **speed and space**.

- **Motorsport Connection** – Enthusiasts drawn to **Audi’s rally heritage** influenced marketing, positioning the RS4 B5 as a **successor to the legendary RS2 Avant**.

**Market Positioning**

- **Premium Branding** – Audi targeted professionals who wanted **performance without sacrificing refinement**, reinforcing its **“Vorsprung durch Technik”** philosophy.

- **Limited Production Appeal** – The RS4 B5’s exclusivity made it desirable among collectors, increasing its **long-term value**.

- **Technology & Handling** – The quattro system and **advanced suspension** catered to drivers who valued **precision and control**.

The **Audi RS4 B5** was a product of its era, blending **performance, practicality, and exclusivity** to meet the expectations of its target audience. 

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Parts Bin Engineering 

Audi shares many components across its lineup, often pulling from the **Volkswagen Group parts bin**. This strategy helps maintain cost efficiency while ensuring high-quality engineering. Here are some notable examples: **Shared Components** - **Engines** – Many Audi models use **VW Group engines**, such as the **EA888 2.0 TFSI** found in Audi, Volkswagen, Skoda, and SEAT vehicles. - **Transmissions** – Audi shares **DSG (Direct-Shift Gearbox) transmissions** with Volkswagen models. - **Infotainment Systems** – MMI systems often incorporate **VW Group technology**, with similarities to Skoda and SEAT interfaces. - **Chassis & Platforms** – Audi’s **MLB Evo platform** underpins models like the **A4, A6, Q5**, while the **MQB platform** is shared with Volkswagen and Skoda. - **Interior Components** – Some switches, buttons, and climate control units are common across **VW, Audi, and Porsche** models. **Notable Examples** - The **Audi A3** shares many parts with the **VW Golf**. - The **Audi Q7** and **Bentley Bentayga** use the same **MLB Evo platform**. - The **Audi R8** shares components with the **Lamborghini Huracán**, including its **V10 engine**. Audi’s ability to **blend shared components with premium refinement** is a key part of its success. You can explore more about Audi’s parts-sharing approach [here](https://www.reddit.com/r/Audi/comments/qgvcwl/anytime_someone_brings_up_how_many_vw_parts_an/).

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Spares/Specialists 

If you're looking for **Audi RS4 B5 (1999-2001) spares** in the UK or Ireland, here are some great places to check: 

- **[Tegiwa](https://www.tegiwa.com/collections/94-01-audi-rs4-b5-oem-aftermarket-car-parts-and-accessories)** – Offers a wide range of **OEM & aftermarket performance parts**, including **engine, suspension, and brake components**. 

- **[DPM Performance](https://www.dpmperformance.co.uk/car-parts/audi/rs4/showall)** – Stocks **Bilstein coilovers, Eibach anti-roll bars, and FK wheel spacers**, with **free UK delivery**. 

- **[AutoVillage](https://www.autovillage.co.uk/car-parts/audi/rs4)** – Specializes in **new and used Audi RS4 parts**, including **engines, exhausts, and suspension components**. 

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Specialist Garage Services NI 

There are several **Audi specialist garages** in **Northern Ireland** that offer servicing, repairs, and diagnostics. Here are a few options: 

- **[Audi Specialist Repairs](http://www.audispecialistrepairs.co.uk/contact/)** – Located in **Craigavon**, offering **Audi-trained technicians** and specialist tools. 

- **[VW Audi Repair Centre](https://www.bing.com/search?q=V%20W%20Audi%20Repair%20Centre&filters=local_ypid%3a%22YN1029x15742793272739586750%22)** – Based in **Ballyclare**, providing **high-quality servicing and diagnostics**. 

- **[Belfast Audi](https://www.agnewcars.com/audi/)** – An **official Audi dealership**, offering **manufacturer-approved servicing**. 

- **[Portadown Audi](https://www.agnewcars.com/audi/)** – Another **official Audi dealership**, providing **full Audi mechanical and servicing provisions**. 

If you're looking for **independent specialists**, **Audi Specialist Repairs** and **VW Audi Repair Centre** might be great choices. If you prefer **official Audi servicing**, **Belfast Audi** and **Portadown Audi** are excellent options. 

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Racing 

The **Audi RS4 B5 (1999-2001)** wasn’t specifically designed for racing, but its **high-performance engineering** made it a favorite among enthusiasts and private racing teams. While Audi didn’t officially campaign the RS4 B5 in major motorsport events, its **quattro AWD system and Cosworth-tuned 2.7L biturbo V6** made it a formidable machine on the track. Audi’s **RS models** were inspired by motorsport, with the **RS4 B5** following the legacy of the **RS2 Avant**, which had Porsche’s involvement. The RS4 B5’s **wide-body design, aggressive aerodynamics, and powerful engine** made it a strong contender in **private racing leagues and hill climb events**. Would you say it deserved a proper motorsport career? You can read more about its history [here](https://en.wikipedia.org/wiki/Audi_RS_4). 

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Valuation 

The **Audi RS4 B5 (1999-2001)** holds strong value in the UK classic car market in **2025**. Based on recent valuations, prices range from **£18,000 to £23,000** for well-maintained examples: Market Watch - PistonHeads UK](https://www.pistonheads.com/news/ph-germancars/audi-rs4-b5-1999-2001--market-watch/36563). 

Factors influencing its value include: - **Condition** – Well-maintained examples fetch higher prices. - **Mileage** – Lower mileage cars are more desirable. - **Rarity** – The RS4 B5 was produced in limited numbers. - **Modifications** – Original, unmodified cars tend to be worth more. If you're looking to buy or sell one, checking platforms like **PistonHeads** or **ClassicTrends.eu** can provide more insights. 

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Clubs

There are several **Audi owner clubs** in **Northern Ireland** where enthusiasts can connect, share experiences, and attend events.

Here are a few notable ones:

**Northern Ireland Audi Owners Club (NIAOC)** - **Website:** [Northern Ireland Audi Owners Club](https://niaoc.co.uk/) - **Founded:** December 2017 - **Location:** Bangor, Co Down - **Events:** Regular meetups, charity drives, and classic car shows - **Contact:** Marc Edgar (Founder) – **+44 7928 432776**

**Audi TT Northern Ireland** - **Facebook Group:** [Audi TT Northern Ireland](https://www.facebook.com/groups/AudiTTNorthernIreland/) - **Location:** Belfast - **Focus:** Audi TT owners and enthusiasts

**Audi Owners Club (UK) – Northern Ireland Section** - **Forum:** [Audi Owners Club UK](https://www.audiownersclub.com/forums/topic/6186-new-in-northern-ireland/) - **Community:** Discussions, meetups, and technical advice If you're looking to join a club, **NIAOC** is one of the largest and most active Audi communities in Northern Ireland.

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HISTORY 

The **Audi RS4 B5 (1999-2001)** was a groundbreaking model that solidified Audi’s reputation for **high-performance wagons**. Here’s a look at its history: **Origins & Development** - The RS4 B5 was introduced in **1999** as the successor to the **Audi RS2 Avant**, which was co-developed with **Porsche**. - Audi’s **quattro GmbH** division engineered the RS4, refining the **B5 A4 platform** for extreme performance. - The **2.7L biturbo V6** was developed in collaboration with **Cosworth**, boosting output to **380 HP**—a significant increase over the **S4’s 265 HP**. **Performance & Legacy** - The RS4 B5 could accelerate from **0-62 mph in 4.9 seconds**, with an unrestricted top speed exceeding **170 mph**. - It featured **quattro AWD, widened wheel arches, and upgraded suspension**, making it a formidable machine on both roads and tracks. - Audi produced only **6,030 units**, making it a rare and highly sought-after model today. - The RS4 B5 set the foundation for Audi’s **RS performance division**, influencing later models like the **RS4 B7, RS6, and RS5**. The RS4 B5 was a **game-changer**, proving that a practical estate car could deliver **supercar-rivaling performance** while maintaining everyday usability. Would you say it’s one of Audi’s most iconic RS models? You can read more about its history [here](https://en.wikipedia.org/wiki/Audi_RS_4). 

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