Audi replaced the frustrating single-clutch R-Tronic transmission of past models with a 7-speed, dual-clutch gearbox called S-Tronic in the 2014 Audi R8 V10 Plus. The effect is transformative. The transmission’s quick, seamless shifts seem to maximize the car’s power, which Audi has boosted to 550 hp in the Plus compared to 525 hp in the base V10. The Plus goes zero to 60 in 3.3 seconds and reaches a top speed of 198 mph. Witness this excitingmachine in motion here.