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AC 378 GT Zagato supercar at 2012 Geneva motor show

British sports car specialist AC is back and teaming up with fabled Italian coachbuilder Zagato to create the new AC 378 GT Zagato, the first all-new AC for some time. The company has had an on-off relationship for much of the past decade, with production switched abroad, management changes and a confusing product line-up. But new management has been installed and are hoping to make a fist of AC Cars, one of the world's oldest car brands.

Land Rover tease new Range Rover Sport R / RS – debuts at Goodwood (video)

The new 542bhp Range Rover Sport teased The idea of a more powerful Range Rover Sport – complete with the 542bhp version of the supercharged V8 from the Jaguar XJR and F-Type Coupe – has been around for quite some time, but it’s about to become a reality. Land Rover has revealed a teaser video for the new Sport R – which really shows no more than the spy video of the Sport R we had a year ago – but it does herald the imminent arrival of the new Sport R at the Goodwood Festival of Speed this month. With the 542bhp V8 Supercharged under its bonnet, the Sport R is likely to get much closer to the performance of the Porsche Cayenne Turbo, with a 0-62 mph likely to be well under 5 seconds.

One Lap of the Web: Janky Jettaminos, scary supercars and a two-wheeled tour of the Packard plant

-- Our friend Corbin is back! And he's got an even more terrifying car this time: the Jettamino, a Volkswagen Jetta diesel with the structural stability of a pool noodle and the hipster styling of an LCD Soundsystem reunion tour on wheels. (Fabric wheelarches have never been done before, for good reason.) Somehow, Corbin suckered his friend David into chopping off the roof.