Wikipedia
G-Power
G-Power is a German car tuning manufacturer based in Autenzell, Bavaria. Founded in 1983 by Jochen Grommisch, the company specialises in tuning BMW cars and manufacturing boutique vehicles. It was integrated into the ASA Group in 2008. G-Power holds several world records; its supercharged 5.0L V-10 830 hp BMW M5 Hurricane RRs is the fastest saloon car in production.