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

Video shows Audi R18 'long tail' e-tron quattro's blistering Monza run

Audi has had a pretty solid run at the 24 Hours of Le Mans over the past decade, but we're glad they keep pushing the envelope. That's how they keep devising road-going spaceships like the staggeringly fast R18 e-tron quatto equipped with a “long tail” aerodynamic package. This quick video of the “long tail” hybrid testing at Monza gives us a preview of what we can expect at Spa next month -- and hints at what we'll see at Le Mans in June.

Pick up a twelver for the tired cat, wouldya?

The timeworn solution to quelling the finicky (read “expensive to repair”) Jaguar V12 has been to swap the British unit with that eight-pot testament to midcentury American ingenuity, the Chevrolet small block. We've seen an '80s-era L98 in a Lamborghini Espada. We've borne witness '90's-era LT1s in all manner of things.

Citroen C-Cactus (2007): first official pictures

By Tim Pollard First Official Pictures 03 September 2007 06:12 Citroen C-Cactus: the lowdown Get the prickly jokes out of the way now; Citroen is deadly serious about its new C-Cactus. Its risible name was apparently picked - groan - because it's low on consumption like the spiky desert plant... Yes, it's yet another green concept car, designed to showcase a company's commitment to saving the planet.