Not too long ago, the idea of a compact luxury SUV with over 600 hp was unthinkable but thanks to the crew over at Manhart, that’s exactly what we have in the form of a newly-released BMW X4 M Competition.
Named the MHX4 600, the tuner’s take on the German sports crossover is packed with performance and visual upgrades. It shows what BMW’s M division could potentially cook up were it allowed to produce an X4 M with performance to match, if not exceed, that of the X5 M Competition and X6 M Competition.
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Modifications started with the 3.0-liter twin-turbocharged six-cylinder that is good for an additional 125 hp and 99 lb-ft (135 Nm) of torque over the standard model. This results in 635 hp and 579 lb-ft (785 Nm) of torque and has been achieved through the fitment of an MHtronik powerbox or ECU remapping, the fitment of a stainless steel exhaust system, optional race downpipes without catalytic converters, or sport downpipes with 300-cell cats.
Manhart hasn’t disclosed how ferocious the MHX4 600 is off the line but a standard model can hit 62 mph (100 km/h) in as little as 3.7 seconds so this one will be even quicker than that.
Various other performance upgrades have also been made. These include the installation of H&R lowering springs that reduce the ride height by 30 mm (1.2 inches). The tuner can also upgrade the brakes should customers tick some options.
Visually, Manhart’s creation is distinguished from a standard X4 M Competition thanks to multi-spoke 22×9 front and 22×10 rear wheels from Alpina and wrapped in 255/35 front and 295/30 rear performance rubber. A set of Concave One wheels can also be optioned, measuring 21×9 front and 21×10.5 rear with 265/35 and 305/30 tires.
Rounding out the exterior changes is an eight-piece carbon fiber kit that includes a front splitter, side skirt extensions, mirror caps, a rear diffuser, and front air intake shrouds. Custom touches can also be made to the interior at a buyer’s request.