In response to your question:

The Mercedes-Benz S400 CDI V8.

Displacement: 3,996 c.c., 8-V, twin turbodiesel
Horsepower: 250 @ 4,000 r.p.m.
Torque: 560 Nm @ 1,700-2,600 r.p.m.
(30 Nm MORE than the Mercedes-Benz S600 V12 gas engine!)
0-100 km/h (0-62 m.p.h): 7.8 sec (factory figure), about 7.1 timed at race track
Fuel comsuption:
City 11.4 liters/100 kms.
Highway 6.0 liters/100 kms
Mix 8.0 liters/100 kms

The new B.M.W. 740d V8 should also be very close on the race.

A. Rosich
S320, 1998
E320T, 1995