Flexalite 31163 Variable Speed Fan Controller on 2040-parts.com

Carlsson improves upon the Mercedes SL63 AMG

Not happy with only 518 hp and a 4.5-second 0-to-60-mph time from your shiny new Mercedes-Benz SL63 AMG? Lucky for you, the German tuners from Carlsson are now offering performance-upgrade kits in the United States. Through GGI European Tuning in Miami--the exclusive North American importer of Carlsson parts--SL63 owners can massage their rides to churn out 600 hp and 520 lb-ft of torque and to handle better than stock.

Hot laps: BMW 435i vs M3 winter tyre test 3

By Ben Barry First Official Pictures 31 January 2014 08:50 How much difference can winter tyres make to your car’s performance and safety? In snowy conditions, choosing between winter and summer tyres is like choosing between crampons and slippers, but plenty of British winters pass with barely a flake touching the ground. So it’s understandable that most of us are reluctant to fork out for winter tyres.

2010 LA Design Challenge entrants revealed

Entries for the 2010 Los Angeles Design Challenge have now been revealed. The futuristic proposals, which called for designers to envision a 1000lbs (454kg) 2+2 vehicle that delivers comfort, safety and satisfactory driving performance without sacrificing the emotional connection today's consumers demand from their vehicles, come from the west coast design studios of seven automakers – General Motors, Honda, Mazda, Mercedes-Benz, Nissan, Toyota and Volvo. For the first time since the Challenge's inception, studios outside California have also been allowed to enter the competition.