G-Power Extends M3 Upgrades To M4 Variants
The GP-720 performance package means a peak output of 720hp/850Nm.
The GP-720 performance package means a peak output of 720hp/850Nm.
To date, it’s the oldest vehicle that the German tuner has taken in for an overhaul.
And along with a tasty tune, the Swiss give the pocket-sized rocket a bolder look.