2016-2018 Audi TT RS Roadster (8S) 2.5 TFSI (400 Hp) quattro S tronic

The Audi TT RS Roadster (8S) 2.5 TFSI quattro S tronic represents the high-performance, open-top variant of the third-generation TT RS. Produced between 2016 and 2018, it combined the iconic TT Roadster silhouette with the potent 2.5-liter turbocharged five-cylinder engine and Audi’s quattro all-wheel-drive system. This model occupied the premium performance niche within the TT lineup, offering a more visceral and engaging driving experience than the standard TT or even the TT S. It was primarily marketed in Europe and North America to enthusiasts seeking a compact, yet powerful, sports car.

Technical Specifications

INTRODUCTION

The Audi TT RS Roadster (8S) 2.5 TFSI quattro S tronic, launched in 2016, was a key component of Audi’s performance strategy. Built on the Volkswagen Group’s MQB platform (specifically the 8S TT variant), it offered a compelling blend of open-air motoring and exhilarating performance. The ‘8S’ designation refers to the third generation of the TT, which debuted in 2014. The RS Roadster was positioned as the flagship convertible model, boasting significantly more power and sophisticated technology than the standard TT Roadster or the TT S Roadster. Production continued until 2018, making it a relatively short-lived but highly desirable variant.

Powertrain & Engine Architecture

At the heart of the TT RS Roadster lies the EA855 evo 2.5-liter inline-five cylinder engine, internally designated as DAZA. This engine is renowned for its unique firing order (1-2-4-5-3) which contributes to its distinctive exhaust note and smooth power delivery. The engine utilizes a single twin-scroll turbocharger with an intercooler to produce 400 horsepower at 5850-7000 rpm and 480 Nm (354 lb-ft) of torque between 1700-5850 rpm. It features both direct injection and multi-point fuel injection, optimizing combustion efficiency and reducing emissions. The engine’s valvetrain employs dual overhead camshafts (DOHC) and four valves per cylinder. The engine is transversely mounted.

Power is transmitted to all four wheels via Audi’s quattro all-wheel-drive system and a seven-speed S tronic dual-clutch transmission. The S tronic transmission offers incredibly fast and precise gear changes, enhancing both acceleration and driving engagement. The quattro system utilizes an electronically controlled multi-plate clutch to distribute torque between the front and rear axles, optimizing traction in various driving conditions.

Driving Characteristics

The TT RS Roadster’s driving experience is defined by its responsiveness and agility. The 2.5 TFSI engine delivers a broad torque curve, providing strong acceleration from low engine speeds. The S tronic transmission contributes to rapid gear changes, allowing the car to maintain momentum effectively. The quattro all-wheel-drive system provides exceptional grip, particularly in cornering, inspiring confidence. The 0-60 mph sprint takes approximately 3.7 seconds, and the car is electronically limited to a top speed of 155 mph. Compared to the standard TT Roadster or the TT S Roadster, the RS model offers a significantly more aggressive and engaging driving experience. The manual transmission option available on the coupe version was not offered on the Roadster, making the S tronic the sole transmission choice.

Equipment & Trim Levels

The TT RS Roadster came generously equipped as standard. Key features included sport seats upholstered in Nappa leather with embossed RS logos, a flat-bottomed steering wheel, and a fully digital instrument cluster (Audi virtual cockpit). Exterior styling cues included a unique RS front bumper with honeycomb grille, side skirts, a fixed rear spoiler, and oval exhaust tailpipes. Optional extras included Bang & Olufsen sound system, carbon fiber interior trim, and various exterior color options. The interior generally featured dark color schemes with red accents, emphasizing the car’s sporty character.

Chassis & Braking

The TT RS Roadster’s chassis was specifically tuned to handle the increased power output. It featured a McPherson strut front suspension and a multi-link rear suspension, both with optimized spring and damper rates. The car was equipped with ventilated disc brakes at all four corners, with larger rotors and calipers compared to the standard TT Roadster. The front brakes measured 370x34mm, while the rear brakes were 310x22mm. ABS (Anti-lock Braking System) was standard. The Roadster’s weight distribution was carefully balanced to enhance handling and stability.

Market Reception & Comparison

The TT RS Roadster was generally well-received by automotive critics, who praised its performance, handling, and distinctive engine note. It was often compared to rivals such as the Porsche 718 Boxster and the BMW Z4 M40i. While the TT RS Roadster offered comparable performance to these rivals, it was often considered to be a more focused and raw driving experience. Fuel economy was reasonable for a high-performance sports car, averaging around 28 mpg in combined driving. Reliability reports have been generally positive, although the complexity of the engine and drivetrain requires regular maintenance.

Legacy

The Audi TT RS Roadster (8S) 2.5 TFSI quattro S tronic has become a sought-after vehicle in the used car market. Its combination of performance, style, and exclusivity has made it a popular choice among enthusiasts. The 2.5 TFSI engine is known for its durability, but regular maintenance, including oil changes and timing belt replacements, is crucial to ensure long-term reliability. The car’s unique character and engaging driving experience continue to appeal to those seeking a thrilling and rewarding sports car experience.