Range Rover Sport Owner's Manual on 2040-parts.com

Fiat unveils new 900cc TwinAir two-cylinder engine

Fiats of old used to feature noisy two-cylinders with a fetish for overheating, yet the Italians are at it again, this week releasing details of their new TwinAir two-cylinder 900cc engines. You can see how it works in our video below. The new engines, the first in a series of two-cylinders by the Italians, are designed to trump all other downsizing efforts. Headline figures from the 83bhp twin are 23% more power than the regular 1.2 four-pot and the same as a 1.4 16v - yet with 30% less consumption.

Renault TwinRun hot hatch concept (2013) first official pictures

Renault will show off this mid-engined supermini concept at the 2013 Monaco Grand prix race weekend. Called the TwinRun, the R5 Turbo-inspired creation is powered by a mid-mounted 3.5-litre V6, and will hit 155mph flat out. The TwinRun is the latest in a series of wacky Renault concept cars, following the Twizy RS F1 and Twin-Z supermini into the limelight.

Holden VF Commodore Calais V Concept

Holden has unveiled its new Calais V luxury sports concept, previewing the future design director of the carmaker's VF Commodore, which will be sold in the US as the Chevrolet SS. The halo car of GM's Australian arm is a clear evolution of the outgoing model, with an emphasis on greater percieved quality in order to appeal on a global scale. "You'll notice that the hood is more prominent, with a centre crease that emphasises performance potential and two raking spears sweeping in from the A-pillars," says Richard Ferlazzo Holden Chief Designer - Creative Design.