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Mercedes-Benz S 350
When we first drove the new Mercedes S-Class we asked whether it was the best car in the world. We concluded it was certainly a contender for the title, but was most definitely the best luxury car in the world.
Under the long bonnet of the S350 Bluetec is a 3.0-litre turbo-diesel engine with 258bhp, capable of 0 to 60mph in just 6.8 seconds and top speed of 155mph. Neither of these are exactly embarrassing considering the Mercedes is close to nudging two tonnes on the scales.
What is really impressive, however, is the 50.4mpg average fuel economy and the 148g/km emissions.