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

EBay Motors app for the iPhone debuts

Impulse shoppers, rejoice. Thanks to the just-released eBay Motors app, you can go right to your iPhone and grab that Ferrari F50 you've been eyeing since you won the lottery. Rather than patiently test-driving, negotiating and comparison-shopping in person, you can now fall prey to your thumb's need to impulsively purchase a car you think you can afford.

Cash-for-clunkers gems: Corvettes, Camaros, Mustangs and one infamous Bentley meet the end of the road

By now, the high-profile casualties of cash-for-clunkers are well documented: a Bentley Continental R and an Aston Martin DB7 Volante from 1997 and a 1985 Maserati Quattroporte all perished under the government-funded incentive program. But scratching beneath the surface reveals that scores of everyday enthusiast rides such as Mustangs, Camaros and even some Corvettes met ignominious endings by having their engines destroyed and their bodies crushed. While it’s likely that many of the nearly 700,000 clunkers turned in actually were at the end of their roads, the final report released by the government reveals the demise of plenty of affordable, likely still-fixable cars that could have been enjoyed by collectors of all ages.

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.