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918 Alert! Porsche's stinging spyder grows closer to becoming reality

The first fully road-going prototype of Porsche's upcoming 202-mph hybrid-powered 918 Spyder has been seen during shakedown runs at the company's R&D center in Germany. Porsche released its own lightly disguised photographs of the cars being tested. The mules are “camouflaged” in livery meant to summon the famous 917 racer.

The scramble for scarce tires

North American automakers are struggling with a nagging shortage of tires, caused in part by tire plant closings and rising demand for low-volume specialty tires. Automakers are paying much higher prices -- double-digit percentage increases from a year ago -- as tire makers gain pricing power. "We have been bombarded from every side for additional tires, and we can't keep up," said David O'Donnell, Continental Tire's vice president of original equipment in the Americas.

One Lap of the Web: Dying wishes, Euro cars and worst traffic jam in history

We spend a lot of time on the Internet -- pretty much whenever we’re not driving, writing about or working on cars. Since there’s more out there than we’d ever be able to cover, here’s our daily digest of car stuff on the Web you may not otherwise have heard about. If you’d like to start the day off with a good cry, read about 17-year-old Zach Sobiech over at Autoblog.