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

Audi R8 V10 sells for $500,000 at charity auction

Which would you pay more for--a V10-powered Audi R8 or the new Ferrari California? At the third annual Boca Raton Concours d'Elegance in Florida last weekend, the Audi R8--the first one in the United States equipped with the 5.2-liter V10--was the winner in a charity auction, selling for $500,000, well above the car's sticker price of $180,000. Meanwhile, the Ferrari California was snapped up for $350,000, a bit more than the $225,000 sticker price.

Smart Forvision concept (2011) first official pictures

Smart will show this Fortwo design study at the 2011 Frankfurt motor show. Called – futuristically enough – the Smart Forvision concept car, it's a good stab at what 2014's new Fortwo could look like. It's brimming with the sort of tech designed to keep the Fortwo's eco credentials alive and kicking.

Porsche 918 Spyder (2010) at Geneva motor show

Porsche has shown off this stunning new 918 Spyder concept car on the eve of the 2010 Geneva motor show. It’s a mid-engined two-seater in the mould of the Porsche Carrera GT – a landmark supercar to showcase Porsche’s technical nous. Michael Macht, president and chief executive officer of Porsche, unveiled the 918 Spyder in Switzerland, and intriguingly proclaimed that Porsche has never shown a concept car that it hasn’t put into production… Porsche’s official press release was light on the details, but after the unveil Porsche’s R&D chief Wolfgang Durheimer talked CAR around the 918 Spyder and revealed some eye-popping figures for this part-electric hybrid supercar which weighs in at 'less than 1490kg'.