2x 6 White&amber Led Emergency Hazard Caution Warning Strobe Beacon Light Bar#14 on 2040-parts.com

GM weighs moving next GMC Sierra upscale

General Motors will do more to differentiate the GMC Sierra from the Chevrolet Silverado when redesigned versions of the pickups go on sale in the first half of 2013. Sierra models may get a longer list of standard equipment and a higher sticker price than comparable Silverados, Mark Reuss, GM president of North America, said in an interview at the Detroit auto show. A similar strategy has proved successful in differentiating GMC's Terrain and Yukon models from Chevrolet's Equinox, Tahoe and Suburban.

David Brown Automotive Speedback UK debut at Goodwood Festival of Speed (video)

The David Brown Automotive Speedback (above) gets its UK debut at the Goodwood FoS The reveal of the David Brown Automotive Speedback was a pleasant surprise. We’d expected the Speedback to be yet another take on the E-Type – based as it is on the underpinnings of the still very able Jaguar XKR – but instead it was a proper classic GT car that looks much like a classic Aston Martin from the 1960s – think DB5/DB6. Glorious though a DB5 or DB6 is to own, a lot of the time they’re more a work of art to covet than a car you can drive every day.

Cold Fusion: Has the Holy Grail of Energy arrived in E-Cat?

Scientists Andrea Rossi talks about his Cold Fusion E-Cat Cold Fusion – or low-energy nuclear reaction as scientists prefer to call it – has been the Holy Grail of energy production since it was first mooted in the 1920s by Austrian scientists Paneth and Peters. Essentially, cold fusion is a low energy, contained nuclear reaction which doesn’t use fossil fuels and produces no radiation. The problem is that the laws of thermodynamics say Cold Fusion is impossible.