Originally Posted by Imola.ZHP
But the 640 will actually be a 3.0l I-6, just like the 7er "740," right?
Yes. But what's funny about that though? The HO N54 easily trounces the old 4.0L N62 in both power and torque. My guess is that the F2x 1, F3x 3, and F1x 5 will eventually get "x40" models too.