BMW Unveils Its Race-Ready M4 GT3
Based on the M4 Competition, the main difference between the old M6 GT3 and the new M4 GT3 is what’s under its hood: the 4.4-liter P63 V8 has now been replaced by a 3.0-liter P58 straight-six turbocharged engine, which not only shaves 40kg off its weight but also boosts power output from 580 horsepower to 590 horsepower. The racer also comes with a Competition Package which includes equipment that has been tested specifically for use in endurance races, such as additional headlights, spring travel sensors, a rear radar and camera, and a system for measuring both tire temperate and pressure.