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Alfa Romeo Disco Volante returns to Geneva, this time in green and gold

Just about everyone loved the Alfa Romeo Disco Volante by Touring Superleggera that debuted at the 2012 edition of the Geneva motor show. The curvy coupe channeled the design of Alfa Romeos of the 1960s, namely the Alfa Romeo 2000 and 2600 penned by Touring, while appearing modern at the same time. The concept, finished in red at the time, drew praise for its good looks, enough to make just about everyone forget what sort of monster lived under that svelte bodywork: the Alfa Romeo 8C Competizione, powered by a 4.7-liter 450-hp V8 good for a 0 to 60 sprint of 4.2 seconds.

McLaren MP4-12C vs Ferrari 458 Italia: the video

McLaren vs Ferrari: F1's nastiest rivalry is spilling onto the road, and the new issue of CAR Magazine delivers the world's first deep dive comparing Woking's 12C with Maranello's sensational 458. It's the most anticipated supercar showdown for almost two decades, and it's only in CAR magazine (out 18 August). We've stripped the McLaren bare, to deliver a 15-page technical lowdown on the 12C.

At GM, the tail fin is back--but now it's a blade

Tail fins are making a comeback at General Motors Co., although they are a far cry from the saillike appendages of the 1950s. And this time the company is calling them blades. The look, pioneered on the Chevrolet Volt to improve aerodynamics, will appear on other models to boost fuel economy, said Ed Welburn, GM's global design chief.