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

Honda CR-Z Mugen RR – it’s the Japanese version

Honda CR-Z Mugen RR - no power details forthcoming We’ve reported quite a bit on Mugen UK’s efforts to sprinkle fairy dust on the Honda CR-Z Hybrid to turn it in to the sort of hybrid that would appeal to a keen driver. And now it’s the turn of Mugen in Japan who have also built a supposedly one-off CR-Z – the Honda CR-Z Mugen RR. The Euro Mugen CR-Z – which was on show at Goodwood last month – was eventually fettled to deliver 197bhp by bolting on a supercharger.

McLaren MP4-12C gets 616 bhp

The McLaren MP4-12C is about to get some upgrades – including an extra 25bhp – which will also be offered to existing owners free of charge. On balance, what McLaren has achieved with the MP4-12C is nothing short of remarkable. Yes, there have been a few glitches along the way, but in truth they have been little more than the sort of hiccups almost any new supercar suffers as it escapes in to the wild and has to deal with the real world and real drivers.

LA Design Challenge 2013: The Entries

The LA Auto Show Design Challenge entries have been revealed, featuring designs from nine of the world's top design studios. JAC, Mazda, SAIC, Qoros, Subaru, Changfeng, Toyota and two groups from BMW DesignworksUSA have submitted designs for the challenge, themed ‘Biomimicry & Mobility 2025: Nature's Answer to Human Challenges'. This year's brief asked for designs for a vehicle experience that identify issues like congestion, pollution, sustainability, flexibility and safety in designing a mobility solution that mimics nature to solve them.