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

AutoWeek office swag: Mazda rotary-engine keychain with realistic motion

When I got the keys to our long-term 2011 Mazda 5 last week, they came with a surprise--this aluminum-and-brass keychain in the shape of a rotary-engine housing, complete with moving rotor. The rotor doesn't just rattle around or spin in a circle. Thanks to a thumbwheel on the back of the housing, coupled with a timing gear and offset crank journal, the thing actually moves in an approximation of epitrochoidal motion just like a real Wankel.

Upgrades create new flagship Kia Carens

THE RANGE-TOPPING Kia Carens has been upgraded with satellite navigation and a better stereo following customer demand. The Carens 3 is the basis for the new technology to create the Carens 3 Sat Nav, which uses a seven-inch touch-screen on the centre console. There will now be seven higher-quality speakers spread throughout the cabin, too.

Top 5 hatches of the 2014 Geneva motor show

By Ollie Kew First Official Pictures 05 March 2014 11:00 There’s a wildly diverse crop of new hatches at the 2014 Geneva motor show: a rear-drive city car, a firecracker of a crossover, new concept cars and even a lap time world record holder. Here are CAR’s Top 5 hatches of the 2014 Geneva show – and the customary dishonourable mention… The Mazda Hazumi concept is essentially what the new Mazda2 will look like when it hits showrooms – and it’s set to give the mainstream makes a proper fight. Mazda isn’t just on a styling roll of late – even the Mazda3 and Mazda6 are arguably the most handsome cars in their respective classes – but are building cars that are sensibly priced, affordable-to-run and damn good fun to drive.