Bell Vortex Helmet 2x-large Matte Black Snell M2010 W/smoke Shield 2017631 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.

BMW X6 M50d: Performance & economy revealed

BMW X6 M50d: Performance & Economy figures revealed With the BMW X6 M50d confirmed as on its way, we now get news on its performance and economy. We’ve been reporting the likelihood that BMW will drop their new three stage turbo diesel in to the X6 for a long time now, and that’s a racing certainty after BMW teased what is almost certainly the X6 M50d this week with a video. But what about power, performance and economy on the M50d?

M-way closures 'all year round'

SOME MAJOR MOTORWAYS did not operate at full capacity on any day last year, according to figures obtained under a Freedom of Information Act request. There were some lane closures on all 365 days of 2013 on the M1, M4, M5, M6 and M25 as well as on the M60 in north west England and on the M54 in Shropshire and Staffordshire. There were 358 days of lane closures on the M62 in northern England, 357 on the M40 which runs west from London to South Wales and 355 on the M27 in Hampshire.