Experts from the auto Manhart Racing tuning studio have prepared a program full-size refinement charged BMW X6 M, which received the name M6XR Twin Turbo crossover. The main attention was paid to the tuners tuning of the power unit, which is in standard version produces 555 hp and 678 Nm volume with a working volume of 4.4 liters, providing a top speed of 275 km/h. But Gunther Manhart considered that this crossover is clearly not enough, so now the 4.4-liter Twin Turbo produces 687 hp already that allows the car weighing 2380 kg to recruit a hundred places in just 4.7 seconds and a top speed increased to an impressive 319 km/h. To achieve a substantial gain succeeded by deep modernization of electronic systems and engine installation sport exhaust system made of stainless steel with four tailpipes and racing of catalytic converters. The cost of improvements is not reported, but it is already known that the engineers Manhart Racing are working on a package of performance, capacity of which exceeds 700 hp and maximum torque – 900 Nm.