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Mercedes-Benz SL

The next generation Mercedes-Benz SL – code name R231 – is the sixth model to wear the 'Sport Leicht' badge since the first back in 1954. Despite being 50mm longer (at 4612mm) and 57mm wider (1877mm) than its predecessor, the new SL is considerably lighter thanks to its aluminium construction. Its drag Cd figure of 0.27 also helps to increase efficiency.

Volvo 13-liter liquefied-natural-gas engine announced for North America

It comes as no surprise that, with rising fuel costs, companies are continuing their efforts to increase efficiency. Volvo Trucks, for its part, plans to launch a 13-liter liquefied-natural-gas engine for North America in 2014 and is set to develop a new form natural-gas fuel called DME, or dimethyl ether. Volvo looks to add the liquefied-natural-gas option to complement its compressed-natural-gas (CNG) offerings.

Mazda CX-7 gets sporty makeover for Europe

By Ben Whitworth Motor Industry 29 September 2006 03:13 Mazda is scrabbling to ready a muscular 170bhp turbodiesel engine for its new CX-7 crossover, which arrives in Europe next summer. Although the five-seat 4x4 will initially come with a 258bhp version of the Mazda 6 MPS's turbocharged 2.3-litre four, European market demands for diesel power mean Mazda will unleash a new 2.2-litre version of its four-cylinder diesel. This engine will be hooked up to a slick six-speed manual or five-gear automatic transmission.