The next carmaker to start manufacturing diesel hybrids looks set to be Mercedes. The company will reveal two such models at the upcoming Detroit Motor Show.
Both of them will be E-Class versions. The E-400 electric-petrol hybrid is intended for the U.S. market and the E-300 electric-diesel hybrid will be launched in the European and UK market.
The Motor Report says the E-300 will use a combination of a 20kW electric motor and a 150kW diesel engine. The electric motor will be powered by a lithium-ion battery. Strangely enough, the car will be able to run in 100% electric mode for less than a mile before it needs to switch to diesel mode again.
The E-300 hybrid's fuel economy will, however, be significantly better than the non-hybrid model. Mercedes has mentioned a figure of more than 60mpg for the combined cycle in this regard - which is better than the BMW ActiveHybrid 5.
So far only Volvo, Citroen and Peugeot have ventured into the world of diesel hybrids, which is strange considering the fact that these cars offer better fuel economy than their petrol counterparts.
The E-400 that will be marketed in the U.S. will combine the same electric motor with a 3.5-litre V6 petrol engine. This will give the car a power output of 302bhp. Fuel consumption will be in the region of 32mpg.
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