400 PS Sportec RS425 based on Audi S4 Avant 2009 wallpaper
An Audi S4 with its 333 compressor-PS is no mean thing on its own but the Swiss tuner thinks differently and by applying specific techniques has pushed the vehicle from Ingolstadt way over the 400 PS mark. ... View 2009 400 PS Sportec RS425 based on Audi S4 Avant specs