Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Canadian Grand Prix (2013): RESULT

A Red Bull win for Sebastian Vettel in the Canadian Grand Prix Qualifying for the 2013 Canadian Grand Prix was a bit of a lottery, with spins and crashes and odd results thanks to rain. But despite the rain, we still ended up with a grid that looked about what you’d predict – apart from a Williams in third place – and the race ended up much the same – but without the Williams near the front. From the start Vettel powered away and, apart from three laps, led the Canadian Grand Pric from beginning to end to take his – and Red Bull’s – first win in North America – which will please Infiniti no end.

McLaren MP4-12C (2011): new testing video

McLaren has issued this new video of its 2011 MP4-12C in the final phases of testing – and McLaren claims it's faster than the 458 Italia or any Gallardo. Watch the video in our player at the foot of this page.The matt black vinyl disguise demarks this pair of cars as the latest McLaren 'XP Beta' test cars, compared with the earlier black-and-white 'XP' prototypes spied last year.'XP Beta' prototypes? All very McLaren!Quite.

2013 Nissan LEAF updated

Nissan has updated the LEAF EV in Japan for 2013 with better range, less weight and a new LEAF S entry-level model. Revealed in Japan – but likely to come to the UK from 2013 when the LEAF starts rolling out of Nissan’s Sunderland factory – there are significant upgrades to the powertrain which result in both less weight and better range. Nissan has had a play with the electric powertrain and made it both smaller and lighter with a new motor that uses 40 per cent less dysprosium (a rare earth metal) than before, and comes in 30 per cent smaller and 10 per cent lighter, and a new streamline battery case and a few other tweaks drops the LEAF’s weight by 80kg.