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

Rinspeed to debut autonomous XchangE concept at Geneva motor show

Dutch coachbuilder Rinspeed has built a reputation for imagining and creating cars from 10 years in the future and making them a reality, either for well-heeled customers or for auto show crowds. So it came as no surprise when it revealed its newest project slated for the 2014 Geneva motor show, meant to preview the interiors of the self-driving cars of tomorrow. Yes, that's a Tesla Model S underneath with a (mostly) muted restyling of the front fascia, though it is really the interior that's meant to be the showpiece.

Audi TTS Limited Edition coming to the UK. Price from £38,860

Audi TTS Limited Edition marks 500,000 TT sales In some ways the Audi TT seems to have been around for ever, although it was actually launched in 1998 and garnered fame as a bit of a softy aimed at hairdressers and others who valued cosmetics over ability. But the latest Audi TT is a much better car and does offer real performance and real driving fun, especially if you opt for the TT RS. In the fifteen years since the TT launched, Audi has managed to flog 500,000, and to celebrate we’re treated to a new TT limited edition – the Audi TTS Limited Edition – which comes with cosmetic tweaks and as a coupe or roadster.

One Lap of the Web: Stuck in the mud, and eye surgery ahead of the Mint 400

-- Take a tour of the Koenigsegg factory, which is really a hangar once used by the Scania Air Force Wing, proving that jets really weren't born from old Opels. See the One:1 that recently made its debut at the Geneva motor show, as well as the Agera R that was used in Need for Speed. One guy spends 50 (that's five-oh hours) hours detailing a Koenigsegg for the Geneva show, which if you think about it isn't really that bizarre.