Audi 04 05 A8 D3 Air Conditioning Lines on 2040-parts.com

Elon Musk unveils Hyperloop

Elon Musk has been teasing us with something called the Hyperloop for a while now, referring to some Goldbergian cross between a railgun and an air hockey table that would zoot us and scoot us from San Francisco to Los Angeles in a half-hour. Now, in a 57-page PDF available here or here, he's outlined just what Hyperloop could be. Bad news?

Spanish Grand Prix (2013) RESULT

Mercedes did an impressive job in qualifying yesterday for the 2013 Spanish Grand Prix, but even Ross Brawn was hesitant to suggest his team could recreate their qualifying form in the race. And they couldn’t – not by a long shot. Alonso made his intentions clear at the start, moving from fifth on the grid to third by passing Raikkonen and Hamilton and headed off after Rosberg and Vettel.

GM's Ed Whitacre meets the press in Web chat

General Motors' new front man, Ed Whitacre, remains a bit of an elusive figure in the car world. But at the very least, the former telecom honcho who's now the leader of the nation's largest automaker does like cars. “Oh yes,” he answered in response to that question during a Web chat on Tuesday, one of his first interactions with the media so far in his tenure at the helm of GM.