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

Mercedes S-Class Coupe: Frankfurt 2013

The Mercedes S-Class Coupe (pictured) arrives in concept guise at Frankfurt The Mercedes CL was never really the big seller you might expect a coupe version of probably the best saloon car in the world – the Mercedes S Class – to be, But that could change with the new Mercedes S-Class Coupe, revealed today at the Frankfurt Motor Show as a concept. The Concept S-Class Coupe – which looks pretty much production-ready – comes complete with a new look, a look that reflects Mercedes’ recent design changes with a clear feel of a grown-up CLA in its lines. The long bonnet, raised line running from the front wings to the back wheelarch, no B-pillar, and a nose that takes the good-looking front of the CLA as its cue – but takes it a step further – makes the S-Class Coupe look like a proper Mercedes in its own right and not just a two-door version of the S-Class.

Ferrari LaFerrari vs McLaren P1: the stats and specs battle

Arch rivals Ferrari and McLaren have both revealed their new hypercars at the 2013 Geneva motor show today. Both produce over 900bhp and 650lb ft, hit 62mph in under three seconds, top 217mph, and cost nearly £1m. When we drive both cars in the coming months their different characters will no doubt be revealed, but for now here's how the pair match up head-to-head...

Audi RS5 (2010) – brochure leak

The entire Audi RS5 brochure has leaked out We’ve been expecting Audi’s hot A5 – the Audi RS5 – for a bit longer than we initially expected. We ran a few stories last year on the Audi RS5 testing at the Nurburgring, and the general consensus was that it would turn up at Frankfurt in September and be in showrooms early in 2010. But that didn’t happen.