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2015 Porsche 911 Carrera GTS revealed – but not in Paris. Costs from £91,098

The new 2015 Porsche 911 Carrera 4 GTS (pictured) now on sale We had assumed that the lack of an appearance at the Paris Motor Show for the new Porsche 911 Carrera GTS meant Porsche had decided to leave the official reveal until later in the year. But here it is, and it’s going straight on sale. Having waited almost until the end of the 997’s life before launching a 911 GTS, this latest GTS is arriving much earlier in the 991’s lifecycle than you’d expect.

Hopped-up Infiniti Q50 Eau Rogue set for Detroit auto show

Infiniti undoubtedly has a prestigious reputation when it comes to the world of Formula One racing, thanks to its partnership with Red Bull Racing and Formula One's baby-faced prodigy, Sebastian Vettel. So it's not surprising that its next concept will take inspiration from the F1 speed machines. Infiniti plans to debut the Q50 Eau Rogue concept at the Detroit auto show in January.

The great British motorway speed limit debate

Associated Press As the government plans a 60mph limit on a 32-mile section of the M1, Britain's speed limits are under the spotlight as never before. The lower limit was announced this week as part of a project to improve air quality in Derbyshire and Yorkshire. If approved, drivers will not be able to exceed 60mph between junctions 28 and 35a between 7am and 7pm.