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Infiniti Q50 Revealed: 2013 Detroit Auto Show

The new Infiniti Q50 – replacing the G37 and the first of Infiniti’s ‘Q’ badged cars – has been revealed at the 2013 Detroit Auto Show. The Q50 is still unmistakably an Infiniti – but a better looking one – with the trademark curves and grill still intact but with a bit of added oomph from a new look inspired by the Infiniti LE Concept we saw in New York last spring. The Infiniti Q50 is both longer and wider than the old G37 – lower too – and a lot slippier, with a drag coefficient of just 0.26 thanks to the sleeker bodywork and lower stance.

Taxi! Toyota's unveils black cab for 2013 Tokyo Motor Show

Toyota will unveil five new concepts at this month's 2013 Toyota Motor Show and - rather fittingly - it's the JPN Taxi Concept that will be first off the rank. And it's most certainly the concept that's captured our imagination. Toyota JPN Taxi Concept Looking every inch the next generation London 'black cab', the Toyota JPN Taxi Concept has been conceived with the Japanese government's programme for designing buses and taxis that are more user-friendly.

Watch Tesla Model S testing new titanium armor

In a missive signed by Elon Musk himself, Tesla announced it would be adding titanium plates and aluminum deflectors to all new Model S sedans and offering free retrofits for the 20,000 or so existing EVs. The company earlier offered an over-the-air software update to raise the ground clearance of the Model S so the car would be more likely to clear dangerous road debris. The actions were in response to well-publicized fires in the electric luxury sedans.