Ford Racing Metal/leather Keychain With Etched Ford Oval/racing on 2040-parts.com

One Lap of the Web: A Miata ninja, classic race cars and the world's most vintage-car-friendly city

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 (or your children) love the smartphone and tablet app Fruit Ninja, you will get a kick out of Motor Authority's photo gallery from the Donington Historic Festival.

Porsche 918 Spyder crashes in Germany

Porsche is in hot water with German authorities following an accident involving a prototype version of the gasoline-electric hybrid-powered 918 Spyder on a public road last month, according to reports in the German media. The accident, which took place between the towns of Bietigheim-Bissingen and Ludwigsburg (close to Porsche's research-and-development center), saw the 875-hp 918 Spyder spin out of control and collide with a guard rail. Parts of the new $845,000 Porsche flagship are said to have broken loose in the collision before being collected by an oncoming car.

503-hp Volkswagen GTI concept headed to Worthersee?

Volkswagen has issued a series of official design sketches hinting at the appearance of a radical open-top concept car to be unveiled at the Worthersee fan meet in Austria on May 29. Called the GTI Roadster, the new two-seater was originally conceived as a virtual three-dimensional image in a joint cooperation between Volkswagen and Sony for inclusion in the PlayStation “Gran Turismo” video game series. But with enthusiasm for the low-slung roadster running high among its design team, Volkswagen has decided to turn it into a full-size concept in homage to a long history of GTI models.