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Detroit Auto Show: Bentley Continental GTC Speed debuts

Bentley will complete its Speed portfolio when it introduces a freshened Continental GTC range at the Detroit auto show. Along with exterior and equipment changes, a new GTC Speed model is added with a more powerful version of the 6.0-liter twin-turbocharged W12 that churns out 600 hp and 553 lb-ft of torque for an improvement of 48 hp and 74 lb-ft over the regular GTC. The result is Bentley's most powerful convertible to date.

Mercedes SL (2012): aluminium saves 8% weight

Mercedes' new 2012 SL will weigh a solid 140kg less than today's SL roadster - a significant saving of some 8%. This crash diet has been enabled by the adoption of aluminium for the new SL. The learnings from the SLS gullwing are now trickling down to the higher-volume SL, which will be revealed in December 2011.

Volvo S90, V90 and V90 Cross Country on the way

The Volvo V70 (pictured) will become the new Volvo V90 All the talk for Volvo lately has been the new 2015 Volvo XC90, an impressive offering that really does look like it will take the fight in the ‘Premium’ SUV market to the Germans (and even to Land Rover). But the new XC90 is just the start of Volvo’s new model line-up, and the next couple of years will see more new models arriving with Volvo’s new Scalable Product Architecture (SPA) and the new range of 4-cylinder, 2.0 litre engines. What we now also know, thanks to Volvo’s Dennis Nobelius, is that the replacements for the S80, V70 and XC70 won’t use the current nomenclature but will be given new names to better reflect their upmarket aspirations (and their place in Volvo’s new line-up).