Competition Cams 740-1 Super Lock Valve Spring Retainers on 2040-parts.com

Mercedes B55 (2011) - a ballistic V8 B-class

Mercedes' tuning arm AMG has not yet ventured into sensible B-class territory, but a bunch of Merc trainees in Germany has come up with this: the B55. It's a V8-powered B-class, complete with AMG-spec 383bhp 5.5-litre V8 mounted up front and driving an old W210 E-class rear axle. Sounds like a promising skunkworks special, derived from an old B200 CDI hack that was kicking about the training centre.

New Audi S1: 231hp, sub-£25k price

Pictures and full details of the Audi S1 have been released ahead of the car’s public debut at the Geneva Motor Show next month. If the bright yellow colour of the car pictured doesn’t grab you, the stats probably will – this pocket rocket has four-wheel drive, a 0-62mph time of just 5.8 seconds and prices starting from less than £25,000 (just). Audi Audi S1: what's new?

2012 Toyota Yaris revealed

The 2012 Toyota Yaris debuts in Japan as the Toyota Vitz The headline is probably a bit disingenuous. The car in the picture – as you’ve probably already worked out – is the new Toyota Vitz, the JDM (Japanese Domestic Market) version of the Toyota Yaris. And it’s just been shown in Japan.