The Audi RS 5 Coupé is equipped with a high-revving, normally aspirated V8 displacing 4,163 cc. The 4.2 FSI delivers 331 kW (450 hp) at 8,250 rpm, with the peak torque of 430 Nm (317.15 lb-ft) available between 4,000 and 6,000 rpm. Direct response, eager revving and a rich, melodious sound – the V8 with direct fuel injection and aluminum crankcase is a thoroughbred sport engine.
The long-stroke engine (bore x lift 84.5 x 92.8 mm [3.33 x 3.65 in]) can breathe freely thanks to intensive refinements to the intake and exhaust system with the two throttles valves. Valves in the two large tailpipes open at high load and engine speed or at the push of a button in Audi drive select for a richer sound. In Dynamic mode, double-clutching provides an audio backdrop to downshifts. Upon request, Audi will install a particularly distinctive sounding sport exhaust system with black tailpipe tips that also includes this switching function.
The 4.2 FSI’s specific power output is 108.1 hp per liter of displacement; each hp only needs to move 3.8 kilograms (8.38 lb) of weight. The 4.2 FSI with its red cylinder head covers is hand-built at the Audi plant in Györ, Hungary. It catapults the two-door from a standing start to 100 km/h (62.14 mph) in 4.5 seconds; 200 km/h (124.27 mph) is reached after another 10.9 seconds. Top speed is a governed 250 km/h (155.34 mph); Audi will raise this to 280 km/h (173.98 mph) at the customer’s request.
The powerful V8 consumes just 10.5 liters of fuel per 100 km (22.40 US mpg), much less than its direct competitors. The cylinder barrels and the chain drive have been optimized for minimal friction, and the oil pump is demand-controlled.
The equipment and data specified in this document refer to the model range offered in Germany. Subject to change without notice; errors and omissions excepted.