Porsche has announced that Manthey's 911 GT3 RS performance kit is finally available in the U.S. The package costs as much as ...

This new offering expands the existing AMT portfolio of products for Daimler DT12 and Volvo I-Shift transmissions and ...

The GT3 RS now makes over 2,200 pounds of downforce at 177 miles per hour, which is significant for a vehicle with a curb ...

Apart from the reworked engine, the Alpina B8 GT also gains a modified all-wheel-drive system and differentials, with ...