The Audi TT RS Roadster (8J, facelift) with the 2.5 TFSI 340 horsepower quattro powertrain represents the high-performance, open-top variant of Audi’s iconic TT sports car. Produced from 2010 to 2014, this model year benefited from a mid-cycle refresh (facelift) that refined both its aesthetics and technology. It occupied the top echelon of the 8J TT Roadster range, offering a significant performance upgrade over the standard 1.8 TFSI and 2.0 TFSI models. The TT RS Roadster aimed to deliver a thrilling driving experience, combining the agility of the TT platform with the potent power of Audi’s five-cylinder engine and the security of all-wheel drive.
Technical Specifications
| Brand | Audi |
| Model | TT |
| Generation | TT RS Roadster (8J, facelift 2010) |
| Type (Engine) | 2.5 TFSI (340 Hp) quattro |
| Start of production | 2010 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Roadster |
| Seats | 2 |
| Doors | 2 |
| Fuel consumption (economy) – urban | 12.8 l/100 km (18.4 US mpg, 22.1 UK mpg, 7.8 km/l) |
| Fuel consumption (economy) – extra urban | 7 l/100 km (33.6 US mpg, 40.4 UK mpg, 14.3 km/l) |
| Fuel consumption (economy) – combined | 9.1 l/100 km (25.8 US mpg, 31 UK mpg, 11 km/l) |
| CO2 emissions | 212 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.7 sec |
| Acceleration 0 – 62 mph | 4.7 sec |
| Acceleration 0 – 60 mph | 4.5 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 4.4 kg/Hp, 225.2 Hp/tonne |
| Weight-to-torque ratio | 3.4 kg/Nm, 298 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 | 1510 kg (3328.98 lbs.) |
| Max. weight | 1830 kg (4034.46 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 | 6 gears, manual transmission |
| 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) is a two-door, two-seat, high-performance roadster that debuted in 2010 as part of Audi’s RS model lineup. Built on the 8J generation TT platform, which also underpinned the Volkswagen Golf Mk5 and Mk6, the RS Roadster represented the pinnacle of performance for the TT range. The facelift brought subtle styling updates, including revised headlights and grille, along with improvements to the interior and infotainment systems. The 2.5 TFSI engine, a hallmark of the RS models, was the key differentiator, providing a substantial power increase over the standard TT variants. This model aimed to appeal to drivers seeking an engaging and exhilarating open-top driving experience.
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 renowned for its unique firing order (1-2-4-5-3) which contributes to its distinctive exhaust note. The engine utilizes direct fuel injection (FSI) and a low-inertia twin-scroll turbocharger, allowing for rapid spool-up and minimal turbo lag. The turbocharger generates significant boost, enabling the engine to produce 340 horsepower and 450 Nm (331.9 lb-ft) of torque. The engine features a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder. The standard transmission for the US market was a six-speed manual, providing precise gear changes and driver control. While a seven-speed S tronic dual-clutch transmission was available in some markets, the manual was favored by enthusiasts for its more engaging feel.
Driving Characteristics
The TT RS Roadster delivers a remarkably responsive and engaging driving experience. The 2.5 TFSI engine provides strong acceleration throughout the rev range, with peak torque available from a low 1600 rpm. This allows for effortless overtaking and brisk acceleration in everyday driving situations. The six-speed manual transmission is well-matched to the engine’s power delivery, offering precise shifts and a satisfying mechanical feel. The quattro all-wheel-drive system provides excellent traction, particularly in challenging conditions, and contributes to the car’s stability and cornering ability. Compared to the standard TT models, the RS Roadster exhibits a firmer suspension setup, resulting in reduced body roll and improved handling. However, the ride quality is still reasonably comfortable for a performance car. The relatively short wheelbase and lightweight construction contribute to the car’s agility and responsiveness.
Equipment & Trim Levels
The TT RS Roadster came generously equipped as standard. Interior features included sport seats upholstered in Nappa leather with embossed RS logos, a flat-bottomed steering wheel, aluminum pedal caps, and unique RS-specific interior trim. Standard exterior features included a distinctive RS front bumper with large air intakes, a rear diffuser, and a fixed rear spoiler. Optional extras included a Bang & Olufsen sound system, navigation system, parking sensors, and various customization options for interior and exterior trim. The overall interior design emphasized a sporty and driver-focused environment, with high-quality materials and meticulous attention to detail.
Chassis & Braking
The TT RS Roadster utilizes a McPherson strut front suspension and a multi-link rear suspension, optimized for performance handling. The suspension components are stiffer than those found in the standard TT models, providing improved control and reduced body roll. Braking duties are handled by 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 brake-force distribution. The car’s lightweight construction, achieved through the use of aluminum in various body panels, contributes to its agility and responsiveness. The quattro all-wheel-drive system distributes power between the front and rear axles as needed, maximizing traction and stability.
Market Reception & Comparison
The Audi TT RS Roadster was generally well-received by automotive critics, who praised its potent performance, engaging driving dynamics, and distinctive styling. It was often compared to rivals such as the Porsche Boxster S and the BMW Z4 sDrive35is. While the Porsche offered a more focused and purist driving experience, the TT RS Roadster provided a compelling combination of performance, practicality, and everyday usability. Fuel economy was reasonable for a high-performance sports car, averaging around 25.8 US mpg in combined driving. Reliability was generally good, although some owners reported minor issues with the turbocharger and exhaust system.
Legacy
The Audi TT RS Roadster (8J, facelift) remains a sought-after vehicle in the used car market. Its distinctive engine, engaging driving dynamics, and relatively rare status contribute to its enduring appeal. The 2.5 TFSI engine is known for its robustness and longevity, provided it is properly maintained. Regular servicing, including oil changes and turbocharger inspections, is crucial to ensure long-term reliability. The TT RS Roadster represents a significant chapter in the TT’s history, showcasing Audi’s commitment to performance and innovation. It continues to be appreciated by enthusiasts as a thrilling and rewarding sports car.
