Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

One Lap of the Web: Mercedes-Benz SLC rendered, Google Glass for the Tesla S and a rusty Datsun 280ZX

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. -- Last month we brought you some intriguing spy photos of a Porsche 911-fighting Mercedes-Benz coupe -- possibly to be called the SLC, or even the next SLS AMG (it's all a bit unclear at this point) -- but layers of camouflage made it a bit tough to see what the car will look like.

Mercedes S-Class AMG Sport Edition – it’s another S-Class run-out special

The Mercedes S-Class AMG Sport Edition is another ‘final’ S Class model with extra equipment as the W221 comes to the end of its shelf life. The current Mercedes S-Class (W221) has been with us since 2006, despite which it’s still a fine car (and a great secondhand buy), but it’s about to be replaced by an all new S-Class. That’s why S-Class sales are falling and why Mercedes has rolled out the S-Class Grand Edition and CL Grand Edition to persuade buyers that a new S-Class (or S-Class coupe, in the case of the CL) is still a good place to park a sizeable chunk of change.

BMW's iconic Art Cars visit New York's Grand Central Station

New Yorkers were treated to a free exhibition of four of BMW's most famous Art Cars, which were part of a display in Grand Central Station last week. Over the years, leading artists have been commissioned to paint whatever they wish on a car and many have accepted, from Alexander Calder to David Hockney. There are 16 cars currently in the collection.