A modern classic from Audi is making a comeback: The third-generation RS 4 Avant combines potent performance with a high level of everyday practicality. It’s 4.2-liter V8 produces 331 kW / 450 hp); the seven-speed S tronic and quattro permanent all-wheel drive transfer that power to the road.
The Audi RS 4 Avant uses the same high-revving, normally aspirated V8 engine that powers the RS 5 Coupe. The 4,163 cc powerplant produces 331 kW / 450 hp) at 8,250 rpm for a specific output of 108.1 hp per liter. Its maximum torque of 430 Nm / 317.15 lb-ft) is available from 4,000 to 6,000 rpm. The responsive V8 with its red-painted cylinder head covers accelerates the RS 4 Avant from zero to 100 km/h (62.14 mph) in 4.7 seconds on its way to a governed top speed of 250 km/h (155.34 mph). This can be increased to 280 km/h (173.98 mph) upon request.
Source: Audi Press Release