The new Audi RS5 is making its debut at the New York motor show.
With its long bonnet and short rump its a gorgeous looking bit of kit and it goes too.
Try 0-100km/h in just 3.9 seconds, with a top speed of 280km/h.
The RS 5 Sportback weighs 1840kg.
Motivation comes from a twin turbo, 2.9-litre V6 that develops 331kW of power and 600Nm of torque, the latter in a wide band between 1900 and 5000 revs.
The two turbochargers generate up to 1.5 bar of charge pressure and are mounted at a 90-degree angle, which means the exhaust side of the cylinder heads is inside, and the intake side is outside.
This layout permits a compact design and short fuel paths, with minimal flow loss, and almost instant throttle response.
Power is fed to all four wheels through the Quattro permanent all-wheel drive with centre differential via an eight-speed tiptronic transmission with optimised shift times for sporty driving.
The split is biased 40:60 front to back to give the car a dynamic feel. When slippage occurs on an axle, most of the power immediately flows to the other axle – up to 85 percent to the front, and up to 70 percent to the rear.
This locking effect enables a clearly-defined torque distribution and precise co-operation with the control systems.
With the optional sport differential, torque is shifted between the rear wheels.
The RS 5 Sportback sits seven millimetres lower than the Audi S5 Sportback.