BMW will put the N55 turbo 6 cylinder in the new F12/F13 6 series for the USA market - 640i
The new F12/F13 6 series will get a 640i variant in the USA powered by the N55 3.0 liter direct injected single turbo 6 cylinder with VALVETRONIC. With the previous generation (E63) BMW felt putting the 6 cylinder in the car in the USA would take the car too far down market. With Americans starting to embrace fuel efficiency and the torque the turbo motor offers, the 640i is no longer seen as much of a downgrade. In Europe, the previous generation 6 series was available with the 3.0 liter N52 naturally aspirated 6 cylinder as well as a 6 cylinder diesel. We doubt any diesel variant will make its way over as BMW still thinks Americans do not want diesels.