Since hybrids use a conventional engine in concert with an electric motor, it’s not surprising that a state-of-the-art hybrid is making use of the world’s most fuel-efficient piston engine – the diesel. In its latest form, the exhaust emissions from the Mercedes-Benz BLUETEC diesel are as clean as a modern gasoline engine.
Arriving after 2010, the S400 BLUETEC HYBRID with be available with a high-torque electric motor that works together with a V6 BLUETEC diesel engine to provide the performance of a V8 with the fuel economy of a four-cylinder.
A total 265 horsepower and 465 pound-feet of torque is on hand – more pulling power than many conventional V8 engines – for zero to 60 mph acceleration of about 7.2 seconds, while the car is still capable of 40.5 miles per gallon (based on a European driving cycle) in highway driving. These figures are even more impressive when considering that the S-Class is a large luxury sedan.