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New Porsche 911 Turbo gets a bigger engine and cranks out 500 hp

There are plenty of good reasons to go to the Frankfurt motor show in September, but this seals the deal--Porsche will use the show for the rollout of the new 911 Turbo in coupe and convertible versions. Porsche on Friday gave us photos and details on the newest 911. Here are the high points: -- New 3.8-liter flat-six engine rated at 500 hp.

The BMW M5 is back!

BMW's M division has gone back to the drawing board with the M5, giving the fifth generation of the iconic four-door a twin-turbocharged 4.4-liter V8 engine—the first time Munich's class-defining performance sedan has gone without a naturally aspirated powerplant since its introduction in 1984. Further changes see it adopt a dual-clutch gearbox as part of a complete driveline rethink that resigns the old model's sequential manual transmission to the history books. Revealed here officially for the first time, the new M5 is planned to make its world debut in concept-car guise at the Shanghai motor show later this month.

Bugatti Veyron Grand Sport Vitesse world speed record: Video

We hoped that tease might be for something really interesting and new – perhaps the much rumoured 1600bhp Veyron or even the Galibier –  but it was simply a new world record for an open-topped production car. Impressive, of course, but just more of what we expect from Bugatti, rather than something new and innovative. The new world record for the Vitesse was set at the VW facility at Ehra-Lessien where Chinese driver Anthony Liu took the Veyron Grand Sport Vitesse to 254mph, creating a new world record for an open-topped production car and, more importantly for Bugatti, an excuse to produce a limited run of the Veyron Grand Sport Vitesse WRC Edition with a black and orange paint job for €1.99 million each.