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

Concept Car of the Week: Citroën C-Metisse (2006)

Citroen was on a roll back in 2006, in terms of its production cars such as the C4 and C6, but most notably in advanced design. The previous 'C-' range of concepts that started in 2002 with the C-Airdream, swiftly followed by the C-Airlounge and C-Sportlounge. But there's a feeling that the this fourth car in the series was the one that showed the PSA design team at its flamboyant best.

Renderings hint at 2015 Ford Mustang appearance

We're still waiting to see what the 2015 Ford Mustang will look like. Spy shots only offer glimpses of undisguised sheetmetal between pieces of heavy camouflage, so until the debut, this set of renderings that appeared on Mustang enthusiast forum Mustang6G.com is the next best thing to an official reveal. Mustang6G forum member chazcron is responsible for the images, which are said to have been built from the growing number of Mustang spy shots circulating the Web.

Acura promotes movie role with secret-agent kit

Rarely do the lengths to which a carmaker will go in promoting a product raise eyebrows here at AutoWeek, but it still happens from time to time. Case in point: Acura sent us a kit of secret-agent tests showcasing the role of its cars in the movie Thor. Touting the carmaker’s first stint in a major motion picture, the so-called Acura S.H.I.E.L.D.