Used Toyota Rav4 Touch 2 Audio Unit 86140-42090 on 2040-parts.com

Koenigsegg's craziest supercar yet debuts at Geneva

Here's what you need to know about the Koenigsegg One:1. It weighs 1,360 kilograms; it produces 1,360 hp. One horsepower per kilogram, which is why mad scientist Christian Von Koenigsegg is absolutely justified in bragging about it: it's the world's first "mega car," he said.

Top Gear: McLaren MP4-12C, Hot Hatches in Monaco & Italy & Ross Noble

McLaren MP4-12C - Jezza on the Top Gear Track Update 4/7/2011: No, we don’t know what happened to Jeremy’s McLaren MP4-12C piece either. The BBC told us it was on, but instead we got James May and the Aston Martin Virage. Not that there’s anything wrong with May and an Aston, but we had our juices going for the McLaren.

Q&A: David Townsend, GM global design director, user experience

GM's new design director of user experience, David Townsend, has only been in the job just over a month. But with a remit extending to the interface design of every vehicle in GM's global portfolio, his influence will soon be widespread. After graduating from Art Center with a degree in transportation design, Townsend interned for Toyota but soon moved to Motorola, where he developed wearable Bluetooth technology and designed the familiar headsets worn by coaches in the NFL.