America’s largest automotive vehicle valuation company, Kelley Blue Book, heads to the track armed with Audi’s brilliant TT RS Coupé model. Powered by a 2.5 L TFSI engine developing 265 kW (360 hp) and 450 Nm (332 lb-ft), the TT RS can hit 100 km/h (62 mph) in just 4.6 seconds and reach a 280 km/h (173.98 mph) top speed – if Audi removes the limiter for you.