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Mercedes SLK250 CDI (2011) the diesel roadster revealed

Mercedes has revealed the latest addition to its little roadster line-up – the SLK250 CDI. It’s the first time the Mercedes SLK has been offered with diesel power; the new oil-burning convertible will be officially unveiled at the 2011 Frankfurt motor show in September. What makes the Mercedes SLK250 CDI special?

Sebastian Vettel takes delivery of his eponymous Infiniti FX Vettel Edition

Sebastian Vettel `(pictured) takes delivery of his Infiniti FX Vettel Edition The Infiniti FX50 is Infiniti’s take on the Porsche Cayenne, so we suppose the FX Vettel Edition, with extra power and titivations, should be compared to the Cayenne GTS. But unlike the Cayenne GTS, the Infiniti FX Vettel Edition is a very limited edition car – just 200 are being built – and costs an eye-watering amount of money – £100,000. For your £100k you get an Infiniti FX50 that’s had a raft of titivations to let Vettel reach a higher top speed on his regular joints up the Autobahn in Germany, as well as cosmetic additions to justify the price.

Hydrogen Fuel Cell Cars: The Japanese push

Honda Clarity Hydrogen Fuel Cell Car - already in the real world at $600 a month We make no secret of the fact that we consider Hybrid cars a stop-gap solution to reducing reliance on oil. And frankly, unless you drive like a saint you’ll probably find you get inferior performance and poorer fuel consumption out of regular hybrids than you would from a decent eco-diesel. Only when you start to put complex hybrid systems in high-end cars do you start to come up with something that does mitigate fuel use and improve performance.