The 2.9 TFSI V6 bi-turbo engine, which Audi developed from the ground up, offers sharp increases in power and efficiency as well as an incomparably full-bodied RS sound. It delivers 331 kW (450 hp).
And it’s peak torque of 600 Nm (442.5 lb-ft) – 170 Nm (125.4 lb-ft) more than the previous model – is available across a broad engine speed range from 1,900 to 5,000 rpm. The top model in the A5 family sprints from 0 to 100 km/h (62.1 mph) in 3.9 seconds, and reaches a top speed of 250 km/h (155.3 mph) – with the optional RS dynamic package it can even reach 280 km/h (174.0 mph).
Both turbochargers of the 2.9 TFSI unit are centrally positioned inside the V of the engine and each of them supplies a single cylinder bank.
The B-cycle combustion process with central direct injection represents a new level of efficiency within the RS family. In the NEDC, the V6 bi-turbo consumes just 8.7 liters of fuel per 100 kilometers (27.0 US mpg), which corresponds to 197 grams of CO2 per kilometer (317.0 g/mi).
This is an efficiency gain of 17 percent over the previous model. Also beneficial for the new RS 5 Coup̩ is a drastic reduction in weight. The vehicle weighs in at 1,655 kilograms (3,648.7 lb) Р60 kilograms (132.3 lb) less than previously. A carbon roof with visible fiber structure is also available as an option.
The bi-turbo’s power flows through a sportily-tuned, eight-speed tiptronic transmission with optimized shift times and on to the quattro permanent all-wheel drive which features a self-locking central differential. The drive forces are asymmetrically distributed between the axles in the ratio of 40:60. Dynamic handling with optimum traction and the best-possible levels of safety are thus guaranteed. Audi Sport also offers an optional rear sport differential.