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New Audi S1: 231hp, sub-£25k price

Pictures and full details of the Audi S1 have been released ahead of the car’s public debut at the Geneva Motor Show next month. If the bright yellow colour of the car pictured doesn’t grab you, the stats probably will – this pocket rocket has four-wheel drive, a 0-62mph time of just 5.8 seconds and prices starting from less than £25,000 (just). Audi Audi S1: what's new?

McLaren P1 gets an Arctic shakedown (+video)

So McLaren are busy throwing the worst conditions they can at the P1 to make sure it can perform even in the harshest of conditions and be the best driver’s car in the world – even when there’s several feet of ice under its wheels. McLaren has had several XP prototypes of the P1 running round the world’s harshest climates – hot and cold – and have delivered a video of the P1 prototype playing on the ice in the north of Sweden – inside the Arctic Circle – to keep interest in the P1 bubbling along ahead of its dynamic debut in the UK at the Goodwood Festival of Speed in July. Despite its enormous power – 903bhp from a combination of its turbo 3.8 litre V8 and electric motor – the P1 does look composed and capable, even with sub-zero temperatures and a surface that has zero grip.

Update: Google self-driving car is really just a transportation pod

Google will launch its own fleet of autonomous vehicle prototypes – with no steering wheels and no gas or brake pedals – as the technology giant begins a new phase of its self-driving car project. Google designed the car and plans to have about 100 test vehicles that are fully autonomous with extra safety features, company co-founder Sergey Brin said during a conference Tuesday hosted by technology blog Re/code in Rancho Palos Verdes, Calif. > See how Google's autonomous car navigates city streets here The New York Times reported Tuesday night that a Detroit-area manufacturer is building the cars for Google, which declined to name the manufacturer, according to the Times' story.