While the Audi A5 will get a minor facelift for 2010, the big news is the smaller engine. We found out back in November that Audi will be downsizing many of its quickest models . While the current RS6 has a 580 hp 5.0-liter twin-turbo V10 engine, the RS6-based RS5, will get 450 hp 4.2-liter twin-turbo V8.
While reduced engines and less power are usually tough to get excited about, the smaller engine should make the car substantially lighter. The RS5 is expected to have a 0 to 60 mph time around 4.5 seconds, which should be very close to the RS6.