Acdelco 41-940 Double Platinum Spark Plug on 2040-parts.com

One Lap of the Web: Bugatti Aerolithe, Jaguar D-type and the Copperstate 1000

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. -- Sympatico Autos brings us video of a meticulous, period-correct re-creation of the long-lost Bugatti Aerolithe on a proper Bugatti chassis.

Porsche Cayenne S Diesel (2012) first pictures

Porsche has equipped its Cayenne SUV with a twin-turbo diesel engine, creating (no surprises here) the Cayenne S diesel. The 4.2-litre bi-turbo oil-burner puts out 376bhp and a rather wholesome 626lb ft of torque. That latter figures bests even the flagship petrol Cayenne Turbo: that car's twin-blown petrol V8 produces 'only' 516lb ft - and costs around £28k more than the Cayenne S Diesel.

Nissan creates Spec Z series with National Auto Sport Association

Nissan is partnering with the National Auto Sport Association to create a new spec road-racing series for the 2003-08 Nissan 350Z. The company says the series will focus on close competition, parity and cost containment. NASA Spec Z will offer a contingency prize program, while Nissan Motorsports will provide technical support.