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.

One:1 halo car coming from Koenigsegg

Christian von Koenigsegg talked to Bloomberg Businessweek over the weekend, telling the publication about his youth, the supercar business and how most Koenigsegg designs start in his head. It's all worth a read. But at the end of the four-page article, the head of the brand hints at a new car, built as a “money-is-no-object venture” for a dealer in China.

BMW X4 debut at Detroit 2013

The BMW X4 – a coupe version of the X3 aimed at the Range Rover Evoque and Porsche Macan – will debut at the 2013 Detroit Auto Show. The BMW X4 – a baby X6 – has been on the cards for some time. We first reported BMW were planning on building a coupe version of the X3 in early 2010 and by late 2010 we were hearing that BMW had signed off the X4 for production.