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

First look: 2014 BMW M3 and M4

The BMW M3 is back, faster and more powerful than ever before -- but only as a four-door sedan. For its iconic 3-series-based performance model, BMW will dispense with a 26-year tradition of high-revving naturally aspirated engines in lieu of turbocharged six-cylinder power. Revealed here in production-car guise for the first time, the new 425-hp M3 sedan will be joined at the outset by its sister model, the M4 -- a mechanically identical but stylistically sleeker two-door coupe previewed in lightly veiled concept-car form at the Pebble Beach concours in California last August.

Daihatsu OFC-1 and HSC concepts

By Ben Pulman Motor Shows 11 September 2007 10:51 It looks remarkably like a Copen… It does indeed, and at 5mm shorter, the same width, and only 45mm higher the OFC-1 is all but identical to the Copen. In fact, it is the new Copen, just not as cute. But perhaps the biggest changes is the switch from a two to a three-piece folding roof.

Mercedes GLA – the A-Class SUV – will arrive in production guise at Frankfurt

The production version of the Mercedes GLA Concept (pictured) will debut at Frankfurt 2013 It’s only three months since the new Mercedes GLA debuted at the Shanghai Motor Show as a concept, but it’s already close to arriving in production guise. In fact, it looks like the new GLA – based on the new Mercedes A-Class underpinnings – will arrive in production form at next month’s Frankfurt Motor Show, ahead of going on sale in early 2014. The new GLA is aimed squarely at the competition from the BMW X1 and Audi Q3, and if it delivers as well as the A-Class has it stands a very good chance of becoming the pick of the premium compact SUVs.