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

Concept Car of the Week: Renault Altica (2006)

Back in 2006 Renault was still well into its design-leadership stride, if perhaps not for much longer. The Altica concept, shown at that year's Geneva motor show, showcased all the French brand had to offer at that time – a brilliantly brave, architectural interior, a style that could only be associated with its country of origin and an interior that thoroughly questioned and readdressed layout, control and format. It also served to preview the renaissance of the Shooting Brake that the industry is still experiencing.

Porsche Cayenne Turbo S (2012) first official pictures

If you're a Porsche Cayenne buyer, it's unlikely you're too bothered about the political (in)correctness of your vehicle. Still, Porsche has somewhat injected a modicum of common sense into the new flagship model: the Cayenne Turbo S. Despite gains of 42bhp and 37lb ft over the already potent Cayenne Turbo, Porsche claims the Turbo S suffers no drop in fuel efficiency or inferior CO2 output.

Ford Fiesta Zetec S Red and Black Editions (2014) unveiled

By Tim Pollard First Official Pictures 18 June 2014 10:07 Ford has a bold claim for its newly invigorated Fiesta Zetec S Red and Black Editions: they have a greater specific power output than a Bugatti Veyron! The downsizing trend continues apace and the new warm-hatch Fiestas are first to get a higher-output version of the 1.0-litre three-cylinder Ecoboost engine, tweaked to 138bhp thanks to variable cam timing, higher turbo boost and direct injection. Ford claims the new Fiesta specials are the most powerful 1.0-litre cars in the world.