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

Unique Infiniti Q50 sedans designed by Thom Browne and Zac Posen

Infiniti has teamed up with gilt.com to create two unique Q50 sedans designed by fashion gurus Thom Browne and Zac Posen. These one-of-a-kind sedans will be sold later this year on Gilt, but what are these two sedans all about? The Infiniti Q50 is all new for 2014, and even though the interior of this luxury sedan is not exactly short on style, designers Browne and Posen have lent their expert abilities in creating these unique sedans.

Car making mysterious noises? There's an app for that

You may pride yourself on your ability to diagnose a developing engine problem by sound alone, and then replicate said mystery sound, Click-and-Clack-style, to amuse/annoy your friends and coworkers. ClingClanger is a new phone app that's designed for the rest of the world -- those who can't identify piston slap by sound and are startled by the clicking caused by a dying battery. The natural impulse is to simply crank up the radio and hope the noise/problem goes away.

Hyundai ix35 Hydrogen FCEV for £300 a month and free fuel – but only in the U.S.

Hyundai Tucson Hydrogen FCEV (pictured) for £300 a month and free fuel – but only in the U.S. It’s very early days for cars powered by hydrogen fuel cells, not least because there’s very little in the way of a refuelling infrastructure in place. But car makers are starting to push FCEVs in a bigger way as production costs fall and performance increases, and Hyundai are at the forefront of this move with the hydrogen-powered ix35 and its US equivalent the Hyundai Tucson.