2009 BMW X6

BMW took the wraps off one the auto industry's worst-kept secrets when the BMW X6 "Concept" rolled onto the stage in Frankfurt today. The third member of the BMW X family, the X6 Concept introduces a new segment defined by BMW as the S.A.C. or "Sports Activity Coupe."

Following their German compatriots lead in redefining the term "Coupe," BMW's X6 is a four-door crossover that combines