Porsche 911 924 928 930 944 '65-'92 Valve Stem Seal Set Of 8 German +warranty 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?

Toyota recalls 86,500 hybrids in the U.S, 250,000 cars total

Toyota Motor Corp. is recalling 242,000 hybrid vehicles worldwide, including 86,500 Toyota Prius and Lexus HS 250h hybrids in the United States, to fix a braking glitch. The problem affects only model year 2010 Prius and HS 250h vehicles.

Ariel Atom 700 is a turbo-supercharged 700-hp track weapon

If you're willing to ditch sleek supercar looks and just about every automotive creature comfort in the pursuit of pure performance, you might consider the Ariel Atom 3. Powered by a 2.4-liter Honda I4 engine cradled in an exoskeletonlike frame, the Atom 3 boasts a 0-to-60-mph time of just 2.9 seconds But maybe those performance numbers just aren't enough for you. If so, Piedmont, S.C.-based DDMWorks might have a solution.