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.

Hey Craig Jackson, how did the auction go?

Plenty of people were surprised this week that the original Batmobile sold for $4.6 million* at Barrett-Jackson. And few were more surprised than Craig Jackson, the ringleader behind the mega-million-dollar auction in Scottsdale. The last time we spoke to him, he had estimated the original Batmobile to be worth somewhere around $2 million (later $3-4 million, as he now said).

Top Gear 'regrets' Clarkson remark

TOP GEAR'S producer has apologised after broadcasting a "light-hearted" joke by Jeremy Clarkson that sparked a complaint of racism. The episode, which was filmed in Burma and Thailand and shown in March, featured a scene where the motoring show's stars built a bridge over the River Kwai and as an Asian man walked over it Clarkson said: "That is a proud moment, but there's a slope on it." Somi Guha, an actress who complained to the BBC, said the use of the phrase was an example of "casual racism" and "gross misconduct". The BBC2 show's executive producer, Andy Wilman, said: "When we used the word slope in the recent Top Gear Burma Special it was a light-hearted word play joke referencing both the build quality of the bridge and the local Asian man who was crossing it.