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

First Sight: BMW 1 Series

This is the first BMW to compete in the premium lower medium European car class defined by cars such as the Audi A3 and Alfa Romeo 147, although spiritually it follows the significantly smaller BMW 2002 Touring produced from 1968 to 1976. A little more compact that the 3 Series (which will grow in size with next year's new model) the 1 Series effectively replaces the 3 Series-based Compact and extends the brand downward to just above the Mini. The 1 Series was previewed by the CS1 two door convertible concept shown two years ago at Geneva, with which it shares much of its exterior proportions and form, and some interior design themes.

2012 Mazda CX-5 at Frankfurt

2012 Mazda CX-5 - Frankfurt Debut Mazda has been touting its SKYACTIV Technologies for some time now, and the new 2012 Mazda CX-5 – which Mazda will debut at Frankfurt next month – is the first Mazda to come endowed with a complete raft of SKYACTIV stuff. The clever stuff includes Mazda’s new modular platform that can be used for everything from the Mazda3 upwards, and which is said to give the CX-5 not just car-like handling but proper sporty and stable driving dynamics too. The SKYACTIV technology comes in to play with the engines too on the CX-5, with the new 2.2 litre diesel delivering 173bhp and a remarkably low 120g/km in standard guise.

Infiniti Q50 channels its inner Formula One

The Infiniti Q50 Eau Rouge concept bowed at the Detroit auto show on Monday. This is the same F1-Spa-Francorchamps-inspired sedan that the company teased early in December. It's purely a concept for now, and therefore only has a hypothetical powerplant.