Manhart Racing BMW M6XR - Car Wallpapers 2011
Günther Manhart, of course, is not impressed by those numbers; he has been something akin to an inofficial pope at BMW motors for many years. Thanks to his many years of experience with the Bavarian engine constructors, the BMW X6 M V8 twin turbo engine proved no exception to his ability to quickly find efficient ways of increasing the performance of an engine. Thanks to an overhaul of the engine electronics, including DME control, and a catalytic conversion including modifications to the converters, the power of the 4.4 litre V8 is increased to 687 hp, which at a tare weight of 2380 kg amounts to a power to weight ratio of 3.4 kg per hp. With that, the M6XR Twin Turbo sprints to 100 km/h from a standing start in just 4.7 seconds, and achieves an unbelievable top speed of 319 km/h. A version with more than 700 hp is planned within a short time which, equipped with new exhaust manifolds, will break the 900 Nm barrier.
