McLaren MP4-12C (2011): the full spec announced

CAR is at McLaren HQ in Woking, Berkshire, today to hear the full specification of the new company's new MP4-12C supercar.Scroll to our video player below for live footage broadcast straight from the event at McLaren Automotive. The video will begin at 10.30am GMT on Thursday 18 March 2010 and we'll upload the full video for playback as soon as it's ready. McLaren F1 drivers Lewis Hamilton and Jenson Button were on hand to talk about their experiences with the 12C – they drove it hard at Goodwood earlier this month – and you can read their thoughts at the foot of the page.

Porsche 918 Spyder: The first ride in the future game changer

Faster than the iconic Carrera GT yet more economical than parent company Volkswagen's frugal new Up supermini, Porsche's next supercar, the 762-hp gasoline-electric powered 918 Spyder, promises to offer the best of both worlds—scorching performance and ultralow consumption. Autoweek joins Porsche's engineering team for the very first test of the car that is already causing headaches in Maranello and Sant'Agata. For all of its intense promise and awesome potential, the very first running prototype of the upcoming Porsche 918 Spyder looks suspiciously like a refugee from a shadowy postapocalyptic movie set as it glides silently into view across the vast expanse of bitumen at the Nardo test track in southern Italy.

General Motors reveals two-wheel PUMA electric-vehicle prototype

It’s based on the same driving principles as a skateboard. It looks like a phone booth, or perhaps a baby stroller. But despite the unconventional nature of this vehicle, General Motors says a two-seat, two-wheel ride called PUMA could be a solution to loosen congestion in crowded urban areas.