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

Concept Car of the Week: Chevrolet Astro (1967)

It gave its name to a boxy van in the 80s, but the Chevrolet Astro I was one of the most exciting dream cars developed within the GM styling studio. Presented in New York Auto Show in 1967, it was the first of three Astro concepts shown in annual succession and illustrates GM's desire to develop models that were both aerodynamic and attractive. What we might take for granted in aerodynamics nowadays was almost untouched territory in the mid ‘60s.

Mercedes E300 Bluetec Hybrid (2010) at Geneva motor show

Mercedes unveiled its first ever diesel hybrid at the 2010 Geneva motor, along with a Bluetec version of its ageing Geländewagen and an SLS AMG supercar decked out in full F1 safety car spec. They’re pretty good. The E300 Bluetec Hybrid features Merc’s 201bhp twin-turbo, 2.1-litre four-pot, with a 15kW electric motor positioned between it and the seven-speed auto ‘box.

2012 Mercedes S Class to spawn a convertible

The n2012 Mercedes S Class will lose its top It’s probably a sign of increasing decrepitude as it seems only five minutes since Mercedes launched the current S Class, but already we’re talking about the 2012 Mercedes S Class – and it’s only a year away. As has always been the case with a new S-Class we can look forward to a raft of new innovations when the new S Class launches late next year; clever stuff that will eventually filter down to the cars of lesser mortals as the technology matures and the cost falls. And that clever stuff will be packaged up in a big saloon car – the normal S-Class – an even bigger car – the LWB S-Class – and a huge two door coupe – the Mercedes CL, which is expected to be renamed the S-Class Coupe when the new S-Class launches.