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

Honda CR-Z Mugen (2011): the first sketches

This is our first glimpse of the new, Mugen-tweaked Honda CR-Z. Developed by Mugen Euro, the UK-based arm of Honda’s long-standing tuning partner Mugen, this CR-Z features a whole raft of tweaks to turn it into a hot hybrid. As with the previous UK-spec Civic Type R Mugen, this new Mugen model is currently being touted as a one-off prototype, but just as that Civic was then built in limited numbers the same may happen with the CR-Z – and the individual parts may become available as aftermarket accessories too.

Porsche Cayenne S E-Hybrid: The plug-in Cayenne debuts in Paris

The Porsche Cayenne S E-Hybrid arrives in Paris There will come a point when governments realise that car makers are getting too clever at gaming CO2 levels with impressive and sophisticated hybrids. But until then, there’s a growing number of cars that, on the face of it, offer a ‘cake and eat it’ option for buyers. Like the new Porsche Cayenne S E-Hybrid.

Mazda signs deal with Discovery Velocity to broadcast MX-5 Cup and other races

The Playboy MX-5 Cup is the best racing no one's watching, says Mazda, because it's not on television. The company changed that on Wednesday by inking a deal with the Discovery Velocity channel. Deep cable jokes aside, the MX-5 Cup does present some of the best parity in racing, as well as drivers racing for the love of the sport.