Fast, efficient new Mercedes C250 CDIBlueEfficiency C-class won’t stint on luxury

17 October 2008

Mercedes C250 CDI

High-powered C-class diesel is also more frugal

Many manufacturers cut back on equipment and luxury when producing ‘green’ versions of their cars. Not Mercedes-Benz.

This week the German carmaker unveiled a new ‘BlueEfficiency’ C-class, the C250 CDI. It uses an all-new 2.2-litre turbodiesel engine, which claims official fuel economy of 54.3mpg, while emitting just 138g/km CO2.

This is despite the C250 CDI being based on Mercedes’ high-level ‘Avantgarde’ spec, and loaded with equipment.

Twin turbo

Mercedes BlueEfficiency badge

BlueEfficiency Mercs will maintain the commitment to luxury

However, what makes this new Mercedes doubly impressive is that it’s no slouch in the performance department, either.

It use twin sequential turbos – which means a small high-pressure turbo provides the initial throttle response, gradually handing over to a larger low-pressure turbo as the revs build – and the latest common rail direct injection technology.

And the result is a power output of 201bhp and an enormous amount of pulling power - and all in a so-called eco model. Top speed is 155mph and the 0-62mph sprint takes 7.0 seconds.

Other green tweaks

Other BlueEfficiency modifications include low-rolling resistance (their lower friction should improve fuel economy), longer gearing, improved aerodynamics, more accurate fuel consumption information, and a gearshift indicator - all becoming commonplace on the latest .

Initially available in Europe only in a limited run of 5,000 ‘Prime Editions’, the C250 CDI arrives in the UK next year. Expect to pay around £32,000.

Lower powered and even more economical versions of the new engine will then follow, and make their way into other Mercedes models.

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