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Wednesday, April 8, 2009

M's the word for hottest X5 and X6

It's M for mighty! Following in the wheel tracks of the M3 and M5, BMW has set its M Performance arm to work on its off-roaders – and the result is two of the fastest, most powerful SUVs ever: the X6 M and X5 M.

On sale in October, both are powered by a newly developed 4.4-litre twin-turbo V8 that produces 555bhp and an incredible 680Nm of torque from a mere 1,500rpm. That’s enough to rocket the 4x4s from 0-62mph in 4.7 seconds and on to an electronically limited top speed of 155mph – or 171mph if owners specify the optional M Driver’s Package.

Standard transmission is an uprated six-speed paddleshift auto, which cuts the ignition briefly for extra-fast upshifts. Launch control is also fitted.

Both cars get an intelligent 4x4 system that varies power distribution to improve cornering, along with air-suspension, adaptive dampers and speed-sensitive steering. Also standard is a dramatic bodykit, 20-inch alloy wheels and M badging.

Low fuel economy and high emissions mean owners need deep pockets: both cars return 20.3mpg combined and put out 325g/km of CO2. Prices have yet to be confirmed, but the X5 M is likely to cost £60,000-plus and the X6 M in excess of £70,000

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