BMW already has a reputation for quality and performance to begin with, so what exactly makes a G-Power BMW so special? Here's why the tuner is so revered.

As if 523 horsepower and 479 pound-feet (650 Newton-meters) of rear-biased twist were not enough, the folks at G-Power have recently ... any of them because BMW does not sell the M3 Touring ...

G-Power has been fettling BMWs for almost half a century, and its most recent product is the F90 M5-based G5M Hurricane RR. Though an RS variant surfaced earlier this year, this model turns ...