Idle Air Control Valve... Air Bypass Valve. on 2040-parts.com

Audi A1 Quattro (2012) first official pictures

This is the Audi A1 Quattro, a 252bhp and four-wheel drive hot hatch that’s as exclusive as an R8 GT Spyder. Just 333 Audi A1 Quattros will ever be built so they’ll be a rare sight on the road – and particularly in Britain as the entire production run is left-hand drive, and Audi UK will import a tiny number only if there’s enough customer interest. So I probably can’t afford an Audi A1 Quattro, and I might never see one – what am I missing out on?

Mercedes GLA 200CDI AMG Line

By Ben Barry Motor Industry 21 July 2014 09:21 This is the Mercedes GLA, essentially Merc’s Golf rival – the A-class – with its wellies on. The compact crossover is the baby of the Mercedes SUV family, and gives Stuttgart an answer to cars such as the Range Rover Evoque and Audi Q3. The GLA comes with a selection of four-cylinder petrol and diesel models; we’re testing the entry-level 200 CDI in top-spec AMG Line trim, yours for £28,030.

Ferrari 599 GTO

The Ferrari 599 GTO is the third in an illustrious line of Gran Turismo Omologato models from Maranello. It may look like a lightly modified GTB Fiorano, but is, in fact, almost entirely new. The hood's prominent center bulge and aerodynamic wheel disks are a hat-tip to Ferrari's F1 cars, while the contrasting matte black roof and flying buttresses visually lower the center of gravity and break up the 599's mass.