One Lap of the Web: Porsche flat-fours, hot rod artists and German car shows

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. -- You've heard of watching paint dry, but NHTSA has a new hobby: watching Fords rust.

Nissan future products: Focus is on technology

Nissan Division will be focused for the next few years not just on how to move its product line forward but also how to produce it less expensively. As the company embarks on a multiyear wave of new technologies and a brand-marketing campaign focused on innovation, it also is looking to bring down manufacturing costs through platform sharing, modular components and common parts. The first example of this new process is the redesigned Versa sedan, which will be assembled in Mexico.

Vauxhall Astra & Astra Sports Tourer get BiTurbo diesel

Vauxhall has decided to bolt their BiTurbo diesel engine in to the Astra Hatch and the Astra Sports Tourer. Vauxhall revealed last month that the Astra GTC was getting the frugal but lively 2.0 litre CDTi BiTurbo engine, offering a tempting combination of 53mpg official economy and sub 8 second 0-62mph performance. With levels of economy unthinkable just a few years ago combined with performance a hot hatch would have been proud of, the BiTurbo Astra GTC is a clever combination.