BMWs premium SUV, the X6, has been refreshed - and rejuvenated with the introduction of the diesel-powered X6 M50d from BMW's new M-Performance division.
The styling changes to the standard car are subtle and its the X6 M50d that is the real news here, bringing economy and performance to BMWs flagship SUV.
An X5 M50d joins the stable at the same time and is fitted with the same engine and driveline as its big brother.
The standard X6 has been given a revised front end, receiving a wider, bolder chrome-edged grille to emphasise the cars width, optional adaptive LED headlights, LED strip rear lights, and the introduction of three new colours: Orion Silver, Midnight Blue and Marrakesh Brown (pictured).
The X5 M and X6 Ms have also been given blue aluminium brake callipers, trapezoidal exhaust tailpipes, 20 alloy wheels, special paintwork and badges, and the adaptive LED headlights as standard; the X6 M also gains a Powerdome bonnet.
The interior changes to the standard X6 are just as subtle and comprise two new upholstery trims, Ivory White Exclusive Nappa Leather and Vermilion Red Nevada Leather.
The M cars also get stainless steel sill covers, M steering wheels and seats, and a leather-covered dashboard.
Both the X6 and X5 diesel performance models are fitted with a straight-six 3.0-litre twin-turbo diesel engine that delivers 381hp; heady stuff but shadowed by the engines astonishing 545lb ft of torque. The X6 M50d will hit 62mph from rest in 5.3 seconds, with the X5 M coming along one-tenth of a second later. The top speed of both cars is limited to 155mph.
The fuel economy should be good too, with the X5 M50d averaging 37.7mpg and 199g/km in official tests; the X6 M50ds figures are 36.7mpg and 204g/km.
The M cars also get substantial changes to the chassis, brakes and steering to enable them to drive like a proper M car despite their raised suspension and high centre of gravity.
Prices for the X5 M50d start at 60,325 OTR with the X6 M50d starting at 62,260.
Both models are available in the UK from the 16 June 2012.
The changes to the standard BMW X6 car are very subtle and would probably have passed unnoticed by most car enthusiasts.
Which is not something that can be said of the introduction of the high-performance M models. BMWs X5 and X6 cars have always been great cars to drive and the addition of performance versions will only add to their appeal.
Check out our full guide to the BMW X6. With reviews, photos, videos and stats.