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

Porsche 911 50 Years Edition (2013) at Frankfurt motor show

Here’s the inevitable special edition 911 to celebrate Porsche’s rear-engined icon’s half-century. The 911 50 Years Edition uses the Carrera 4’s 44mm-wider-than-standard body, rear-wheel drive and the Carrera S’s 395bhp 3.8-litre flat-six engine in either seven-speed manual or PDK form. In a nod to the 911’s birth year, only 1963 examples will be produced, each costing a cool £92,587 – a £10k premium over the Carrera S.

Mazda refines lineup with SkyActiv technology

It turns out Mazda isn't simply shooting for the sky. Rather, the protagonists of Zoom-Zoom driving dynamics are taking an active approach to the brand's DNA: Put it all together: it's called “SkyActiv,” and Mazda is billing the suite of technologies as the pillars of its way forward. Much of these features--which enhance future products in nearly all areas, including engine, transmission and chassis--have already been revealed.

Energy Department recovers $21 million from Fisker to pay back loans

The U.S. Department of Energy says it recovered $21 million in cash from struggling Fisker Automotive that will go toward repaying nearly $200 million in loans extended under a U.S. program to spur advanced vehicle development.