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

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.

Future products: Mazda's new direct-injection engine family arrives in 2011

The big news at Mazda is a new family of direct-injection gasoline and diesel engines that will start to arrive in 2011. Mazda will make significant changes to vehicle platforms to accommodate the Sky engines, which will be more powerful and fuel-efficient at lower displacements than the company's current engines. The first Sky gasoline engine is expected to debut in the United States in 2011.

Chevrolet Orlando MPV concept: first photos

By Tim Pollard and Richard Yarrow First Official Pictures 09 September 2008 11:00 Chevrolet's transformation continues unabated with the new Orlando seven-seat MPV. Unless you've been on an unusually long and distant summer holiday, you will have noticed that every manufacturer is whetting gourmands' appetites for a feast of new metal at the Paris motor show 2008 – and the Orlando is one of a handful of new Chevrolets being readied for the French auto salon. The Orlando pictured here is a concept car, but the production version coming by the end of the decade won't look much different.