Engine choices should be similar to the 5-Series, with a 3.0L I-6 on the low end and, possibly, the 500i's 420 HP V8 on the top of the line V-Series. In between those two extremes could easily slot another I-6 and even one of BMW's diesel powerplants. All-wheel drive is another rumored option.
Chances the V will come here may well depend on U.S. reaction to the X6, which shares some lines and characteristics with the V. But if anyone has the ability to sell a minivan-like crossover here, it's BMW.
Check out Winding Road for more spy shots of this highly-disguised, baby-hauling BMW.
[Source: Winding Road]