Nowack Motors calls the package the N700 4.8, and says that customers who want the tuning package simply need to "deliver a standard X6M" and they'll "strip it back to a skeleton". The tune-up is done by completely disassembling the 4.4-litre twin-turbo V8 engine so that it can be bored and honed.

After that, Nowack Motors installs oversized pistons, a new crankshaft, high performance connecting rods, new valve pockets, larger intake valves, free-flow cylinder heads, and special valve springs. Nowack has also modified the turbochargers, added high performance exhaust manifolds, installed motorsport catalytic converters, and reprogrammed the ECU module.

As a result, the modified car produces 715bhp and 845Nm of torque. The standard X6M in comparison puts out 555bhp and677Nm of torque. Nowack Motors also offers a sport suspension, 22-inch light alloy wheels, and Scottish leather upholstery as part of the tuning package.