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

BMW Concept X4 (2013) first pictures of baby X6 coupe-SUV

This is the BMW Concept X4, which borrows the idea of an SUV with coupe proportions from its X6 brother, and shrinks the template down to the size of an X3. But don't be fooled by the 'Concept' tag of this car – like the Concept 4-series coupe we saw in 2012, the X4 is very much confirmed for production, and will receive only detail styling tweaks before it goes on sale in mid-2014. It'll be built alongside the X3, X5 and X6 models at BMW's Spartanburg factory in the USA from early 2014.

Porsche Cayenne 2011 – the leak starts

The first 'Official' photo of the 2011 Porsche Cayenne We’ve been expecting Porsche to release details of the 2010/2011 Cayenne for the last week or so. But it now seems likely to happen any time now as the official images have started to leak out of Stuttgart (photo above). We’ve seen a low-key 2011 Porsche Cayenne tease already from Porsche with the picture on their website showing the 2011 Cayenne lurking in the shadows.

Mercedes-Benz reveals first C-class details

Mercedes-Benz has revealed limited details about its new fourth-generation C-class sedan, more than two months before it is due to make its world debut at the Detroit auto show. Although the new BMW 3-series and Audi A4 rival is yet to official unveiled -- in fact, all we have so far are interior renderings -- Mercedes-Benz says the new C-class will be a significantly more advanced car than its predecessor in terms of construction, with a “best in class” weight figure and a level of structural integrity that it describes as being “unparalleled” in its class. Among its features is a new lightweight body structure that uses a newly developed aluminum hybrid construction process that Mercedes-Benz claims will shave as much as 220 pounds over the current model depending on the engine it uses.