Mirka 6" Orbital Sander 1200 Rpm W/ Vacuum Pick Up & Dust Bag on 2040-parts.com

One Lap of the Web: New Transformers, home-built cars and two Mercury Marauders

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. -- Michael Bay has been releasing the cars of “Transformers 4” for the past couple of months, and the latest one to be revealed is the Pagani Huayra (“why-ra”).

BMW M550d xDrive confirmed. X5 M50d & X6 M50d likely

BMW M550d xDrive arriving March 2012 (M5 pictured) We’ve been talking about the BMW triple-turbo diesel for a long time. As far back as Spring 2009 we reported BMW were working on a triple-turbo diesel, which we expected to see the light of day first in the BMW X5. It took more than two years for BMW to catch up with our story on the triple-turbo diesel, but we finally had BMW man  Brian Watts confirming the new diesel, but that it would turn up as the M550d.

Refreshed Audi A6 Unveiled

GERMAN car maker Audi has released the first details about its revised A6 range. Key improvements centre on styling, equipment, engine performance and efficiency, with the first customer deliveries expected before the end of the year. Revised prices have yet to be announced but Audi is expecting the updated range to start from £32,000.