BMW has put a price tag on its all-new M Division X5 and X6 sport crossovers that were revealed for the first time at this month's New York and Shanghai motorshows respectively. When the X5 M and X6 M arrive in BMW's U.S. dealerships this fall as 2010 model vehicles, they will retail for $86,225 and $89,725 respectively. The first ever X-Series M models are powered by a twin-turbocharged 4.4-liter V8 engine producing 555HP that accelerates both models from 0 to 60mph in 4.5 seconds. For more details and high-res photos, click here.