The Audi TT RS Roadster (8J, facelift) with the 2.5 TFSI 340 horsepower engine and S tronic dual-clutch transmission represents the high-performance, open-top variant of Audi’s iconic TT sports car. Produced from 2010 to 2014, this model occupied the pinnacle of the 8J TT Roadster range, offering a significant step up in performance and exclusivity compared to the standard TT and even the TTS Roadster. It was positioned as a direct competitor to Porsche Boxsters and other premium roadsters, appealing to drivers seeking a thrilling and engaging driving experience combined with Audi’s renowned build quality and technology.
Technical Specifications
| Brand | Audi |
| Model | TT |
| Generation | TT RS Roadster (8J, facelift 2010) |
| Type (Engine) | 2.5 TFSI (340 Hp) quattro S tronic |
| Start of production | 2010 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Roadster |
| Seats | 2 |
| Doors | 2 |
| Fuel consumption (economy) – urban | 12.4 l/100 km (19 US mpg, 22.8 UK mpg, 8.1 km/l) |
| Fuel consumption (economy) – extra urban | 6.4 l/100 km (36.8 US mpg, 44.1 UK mpg, 15.6 km/l) |
| Fuel consumption (economy) – combined | 8.6 l/100 km (27.4 US mpg, 32.8 UK mpg, 11.6 km/l) |
| CO2 emissions | 199 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.4 sec |
| Acceleration 0 – 62 mph | 4.4 sec |
| Acceleration 0 – 60 mph | 4.2 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 4.5 kg/Hp, 221.5 Hp/tonne |
| Weight-to-torque ratio | 3.4 kg/Nm, 293.2 Nm/tonne |
| Power | 340 Hp @ 5400-6500 rpm |
| Power per litre | 137.1 Hp/l |
| Torque | 450 Nm @ 1600-5300 rpm (331.9 lb.-ft. @ 1600-5300 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | CEPA |
| Engine displacement | 2480 cm3 (151.34 cu. in.) |
| Number of cylinders | 5 |
| Engine configuration | Inline |
| Cylinder Bore | 82.5 mm (3.25 in.) |
| Piston Stroke | 92.8 mm (3.65 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant | 10 l (10.57 US qt | 8.8 UK qt) |
| Kerb Weight | 1535 kg (3384.1 lbs.) |
| Max. weight | 1855 kg (4089.57 lbs.) |
| Max load | 320 kg (705.48 lbs.) |
| Trunk (boot) space – minimum | 250 l (8.83 cu. ft.) |
| Fuel tank capacity | 60 l (15.85 US gal | 13.2 UK gal) |
| Length | 4198 mm (165.28 in.) |
| Width | 1842 mm (72.52 in.) |
| Width including mirrors | 1952 mm (76.85 in.) |
| Height | 1348 mm (53.07 in.) |
| Wheelbase | 2468 mm (97.17 in.) |
| Front track | 1555 mm (61.22 in.) |
| Rear (Back) track | 1546 mm (60.87 in.) |
| Front overhang | 911 mm (35.87 in.) |
| Rear overhang | 819 mm (32.24 in.) |
| Drag coefficient (Cd) | 0.32 |
| Minimum turning circle (turning diameter) | 10.7 m (35.1 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 7 gears, automatic transmission S tronic |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 245/40 R18 |
| Wheel rims size | 9J x 18 |
INTRODUCTION
The Audi TT RS Roadster (8J, facelift) arrived as a mid-cycle refresh of the already potent 8J generation TT RS. Building upon the foundation laid by the coupe, the Roadster variant offered an exhilarating open-air driving experience without sacrificing the performance credentials that defined the RS model. The facelift brought subtle styling updates, primarily to the front and rear fascias, along with minor interior enhancements. The core appeal, however, remained the high-revving 2.5-liter five-cylinder engine and Audi’s quattro all-wheel-drive system.
Powertrain & Engine Architecture
The heart of the TT RS Roadster is the 2.5-liter inline-five cylinder engine, designated as the CEPA engine code. This engine is a marvel of engineering, known for its distinctive exhaust note and impressive power output. It features direct fuel injection (FSI) and a low-inertia twin-scroll turbocharger, allowing for rapid spool-up and minimal turbo lag. The engine produces 340 horsepower at 5400-6500 rpm and 450 Nm (331.9 lb-ft) of torque between 1600 and 5300 rpm. This power is delivered to all four wheels via Audi’s renowned quattro all-wheel-drive system, which utilizes a multi-plate clutch to distribute torque between the front and rear axles as needed. The transmission is a seven-speed S tronic dual-clutch gearbox, offering lightning-fast shifts and contributing to the car’s overall responsiveness.
Driving Characteristics
The 2.5 TFSI engine and S tronic transmission combine to deliver a truly engaging driving experience. Acceleration is brisk, with a 0-60 mph time of around 4.2 seconds. The S tronic gearbox provides seamless and rapid gear changes, whether in automatic or manual mode. The quattro all-wheel-drive system provides exceptional grip and stability, inspiring confidence in all weather conditions. Compared to the standard TT Roadster or even the TTS Roadster, the TT RS offers a significantly more visceral and performance-focused driving experience. While the standard TT prioritizes comfort and style, and the TTS offers a balance between the two, the TT RS is unapologetically focused on performance. The steering is precise and well-weighted, providing good feedback to the driver.
Equipment & Trim Levels
The TT RS Roadster came generously equipped as standard. Key features included sport seats upholstered in Nappa leather with RS badging, a flat-bottomed steering wheel, aluminum interior trim, and a premium sound system. Exterior features included unique RS bumpers, side skirts, a rear spoiler, and 19-inch alloy wheels. Optional extras included carbon fiber interior trim, Bang & Olufsen sound system, and various driver assistance systems such as parking sensors and navigation. The interior design was sporty and modern, with a focus on driver ergonomics.
Chassis & Braking
The TT RS Roadster features a fully independent suspension system, with McPherson struts at the front and a multi-link setup at the rear. The suspension is tuned for performance, providing a firm but controlled ride. The car is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The braking system is further enhanced by ABS (Anti-lock braking system) and electronic stability control. The chassis is reinforced compared to the standard TT Roadster to handle the increased power and torque of the RS engine.
Market Reception & Comparison
The Audi TT RS Roadster was generally well-received by automotive critics. It was praised for its powerful engine, engaging driving dynamics, and high-quality interior. Some critics noted that the ride could be firm on rough roads, but this was generally accepted as a trade-off for the car’s performance capabilities. Compared to the standard TT Roadster, the RS model offered a significant performance upgrade, but at a higher price point. Compared to the Porsche Boxster, the TT RS Roadster offered a different driving experience, with a focus on all-wheel-drive grip and a more technologically advanced interior.
Legacy
The 2.5 TFSI engine in the TT RS Roadster has proven to be a robust and reliable unit when properly maintained. The S tronic transmission is also generally reliable, although regular servicing is essential. In the used car market, the TT RS Roadster remains a desirable and sought-after model. Its combination of performance, style, and exclusivity ensures that it continues to appeal to enthusiasts looking for a thrilling and rewarding driving experience. The 8J generation TT RS, including the Roadster, has cemented its place as a modern classic, appreciated for its unique engine and engaging driving dynamics.
