The TT RS Roadster is powered by a 2.5-litre five-cylinder petrol engine with 395bhp The Audi TT RS Roadster is a high-performance sports car with supercar-like performance Performance is effortless thanks to low-down power and a slick dual-clutch gearbox 0-62mph takes just 3.9 seconds – faster than many more expensive sports cars Audi's quattro four-wheel drive system makes the TT RS Roadster grippy and stable in all road conditions It may not be quite as fun to drive as some rivals, but the TT RS is stable and approachable LED matrix headlights are an optional extra The TT RS shares much of its styling with slower models, albeit with some sporty additions 19-inch alloy wheels come as standard, with 20-inch versions offered as an option The TT RS Roadster gets the same excellent interior as other TT models, with some sporty touches