Spycam: 2010 Audi RS5:

After what seems like an eternity, the launch of the 2010 Audi RS5 is almost upon us. A nearly-finished coupe version of the hot Audi was recently spotted testing its stopping power in the Alps ahead of a possible Frankfurt Motor Show debut.

Audi has managed to keep everyone guessing about the RS5's powertrain, but the most-likely scenario is that it's powered by a modified version of the RS4's 4.2-liter V-8 tuned to make around between 450 and 500 horsepower mated to either a six-speed manual or seven-speed S tronic twin-clutch auto. And of course, expect all four wheels to be putting the power down through Audi's quattro system.