Not to be confused with the old Citroën sedan from the 1990s, the all-new XM is a German product through and through. This high-performance luxury SUV slots above the X7 and has no equivalent within BMW’s regular lineup, meaning it’s exclusive to the M sub-brand (just like the legendary M1 was all those years ago). A plug-in hybrid system endows the XM with 644 horsepower or close to 750 horsepower depending on the model.