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There's a 2015 Ford Mustang convertible on the way, too

Almost immediately after the Ford Mustang debuted, buyers could choose from three body styles -- a hardtop, a rag-top convertible and a fastback (which actually came out a few months later than the hardtop and convertible). We already knew that the 2015 Mustang will arrive as a fastback (sorry, notchback partisans), but Ford has just announced that a drop-top version is also in the works. Pictures of the convertible sport a shiny "5.0" badge on the side and and chrome "GT" badge on the back, but we assume all the standard engines -- the 5.0-liter V8, 3.7-liter V6 and that new 2.3-liter EcoBoost turbo-four -- will be offered.

Audi A3 g-tron revealed

Audi has revealed the A3 g-tron Sportback ahead of the Geneva Motor Show, an A3 that runs on Compressed Natural Gas (CNG) and petrol. The A3 g-tron is powered by a tweaked version of Audi’s 1.4 litre TSI petrol engine which can run on both -gas and petrol, with the A3 g-tron normally using the petrol just for start-up and switching over to e-gas as soon as it’s running. Audi has provided two fillers under a common fuel flap – one for e-gas and one for petrol – with the A3 g-tron producing a total of 108bhp with the dual-fuel setup, enough to power the A3 g-tron to 62mph in 11 seconds.

Maserati Quattroporte GT S to go on sale in the spring

Maserati's latest speed demon, the Quattroporte Sport GT S will go on sale this spring, the company said at the car's debut on Monday at the Detroit Auto Show. The Sport GT S gets a 4.7-liter V8 that pumps out 433 hp--an increase from 425 hp in the Quattroporte S. The gearshift has also been calibrated for an even sportier ride.