By 2010 or 11 all of the Mercedes-Benzes will be turbo or supercharged. With electronic management, direct fuel injection etc., the forced induction engines will bring power and torque in a much smaller/lighter package. Also, fuel burn is much more efficient (lower fuel burn) at high compression (see diesel engines).
The new 7-series BMW comes in three flavors: diesel, 6 inline and V8: all of them are FI.
The future is turbo (super) charged: clean, efficient and powerful.