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

Diesel joins Porsche Panamera lineup

Porsche has put forward some eye-catching fuel-economy figures for the Panamera diesel--although we may never see the car in the United States. Set to go on sale across Europe in August, the four-door is claimed to return a combined city/highway driving fuel economy of 36.2 mpg in standard guise under European testing procedures. When fitted with optional low-rolling-resistance tires, the fuel economy climbs to 37.3 mpg on the European test--a figure that gives the Panamera diesel a theoretical range of 800 miles on its 21-gallon fuel tank.

New so-called 'stealth' speed cameras: don't panic

REX Speed cameras: rumours of their death have been greatly exaggerated. Two years ago we were reporting on the number of road safety partnerships switching off their speed cameras – now the Highways Agency has revealed a new system that will offer more cost-effective motorway monitoring. Though officially called Hadsec3 – Highways Agency digital enforcement camera system – the mainstream national press has already dubbed the new speed cameras ‘stealth cameras’, on the basis that they are small and grey, rather than bright yellow.

Abarth 695 Maserati Edition (2012) first pictures

Remember the Abarth 695 Tributo Ferrari, the hyper-expensive hot hatch fettled with some help from Maranello? Well now Fiat has tuned up its baby 500C convertible pocket rocket with assistance from Maserati. The new limited-edition Abarth 695 Maserati Edition will carry a similarly eye-watering price tag - just 499 of the convertible hot hatch will be built and it tops a heady £32,000.