Originally Posted by Kewl X5

The twin-turbo inline-6 will be in the 3-series coupe & sedan in the U.S. for 2007. Also, the 5-series will get the engine as well (return of the 535i designation, though, of course, not a 3.5 liter engine).

Question is, why not the X5? If any vehicle in BMW's lineup, the X5 would need the torque of the twin-turbo (300 lb/ft) vs. 3.0si (225 lb/ft). Granted 260hp vs. 300 hp is also significant difference, but the torque is what will get this X5 going!