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.

British Grand Prix (2011) RESULT

British Grand Prix 2011 With all the arguments over the blown diffuser and how it would penalise Red Bull more than any other team on the grid, it was still business as usual with Webber and Vettel filling the front row of the grid. Just for a change Webber was on pole, but that lasted all of a few yards as Vettel swept past his team mate on the first lap and stayed there until his second pit stop. Then it went a bit wrong.

Concept Car of the Week: Ghia Streamline X 'Gilda' (1955)

In 1954 Virgil Exner, director of styling at Chrysler, created a scale clay-model to communicate to his team his vision of futuristic and aerodynamic shapes. The sculpture was then painted black and was left on display in Exner's Office. There it caught the eye of Luigi Segre, director of Ghia who expressed his intentions to create a car inspired by the forms of the model.