G-Power pretty much tackle every BMW ever made and they have finally taken the M4 Convertible and pumped it up to epic numbers! In stock form, the turbocharged 3.0-litre is a really potent package but for G-Power, that is simply not enough. The company can push the final output of the drop-top machine to 592 hp and 740 Nm. This of course requires additional hardware and software upgrades. So what did they do? G-Power completely modified the turbochargers, beginning with the bigger, lighter wheel and finishing with the housing. This power hike allows the car to hit 100km/h from standstill in 3 seconds flat and go all the way to 320km/h. They also slap on a ultra-light exhaust system to match the sound to the power. A set of fully adjustable coil-overs and a set of 21-inch HURRICANE RR rims complete the package.