We doubt Swiss tuner Mansory will win a design award anytime soon, but unlike its past products, the firm's take on the BMW X5 M hasn't been beaten with an ugly stick.

Unlike past Mansory packages, which have mixed and mashed garish colors and accessories together, its tuned X5 M is a rather clean package. Apart from a new hood stamping, most of Mansory's revisions fall beneath the X5's beltline. A new front fascia incorporates some gigantic air intakes designed to increase cooling; front and rear fenders were widened by roughly three inches; and a new rear bumper has unique cutouts for quad exhaust tips. Remarkably, Mansory curbed its abuse of carbon fiber, applying the material only to the X5's roof spoiler and rear window surround.

In a further break from Mansory tradition, the customized cabin is actually subtler than the X5's exterior treatment. Apart from an Alcantara-covered steering wheel and a revised two-tone color scheme, the interior is largely as BMW designed it. That said, Mansory is only too happy to add whatever embellishments customers desire -- here's hoping they exercise caution during their artistic liberation.

As it leaves BMW's hands, the X5 M is already a hair-raising performer, thanks in no small part to a twin-turbocharged 4.4-liter V-8 rated at 555 horsepower and 500 pound-feet of torque. Mansory says it has several different levels of tuning available for the forced-induction V-8, but the top-end package reportedly allows the engine to produce a pavement-shredding 670 horsepower and 700 pound-feet of torque. As a result, the big SUV can shriek from 0-62 mph in a scant 4.2 seconds (half a second quicker than a stock X5 M), while its top speed has been elevated to 186 mph.

To help scrub off that extra speed, Mansory is currently wrenching on a heavy-duty brake system for the X5 M, although it wasn't fitted to the demonstrator shown here. Other chassis improvements include 23-inch, 20-spoke aluminum wheels, Michelin performance tires, and revised springs, which lower the X5's ride height by 1.6 inches all around.

Unless you count its modified Rolls-Royce Phantom and Ghost models, this souped-up X5 M is Mansory's first take on a BMW product -- but don't expect it to be the last. According to a press release, the company is also working on a hopped-up X6 and 7 Series sedan, and may possibly expand its horizons to other Bimmer models.

Source: Mansory