Paris motor show - Citroen Hypnos

This is the Citroen Hypnos concept car, which could form the basis for a crossover-car based around the C5 as early as next year.

It has a hybrid drivetrain that Citroen is calling Hymotion, which uses a diesel engine to power the front wheels and an electric motor to drive the rears, giving four-wheel drive.

Coupled with the electric motor, the 200bhp engine returns 62.7mpg and emits 120g/km of CO2.

While the exterior styling is expected to make production, the interior, which features coloured lighting to appeal to different moods, is not.

Electric C-Cactus
We've seen the C-Cactus concept car before – its an environmental concept car that achieves low emissions through being ultra-lightweight.

To this end, the cabin uses just 200 parts – almost half of the number in a standard production car.

Here in Paris Citroen has unveiled an electric version of the car, which has a top speed of 70mph and range of around 100 miles.

Future versions of the C-Cactus under development include a petrol-powered car using a 1.0-litre engine and a hybrid version using an engine and electric motor.

C3 Pluriel Charleston
There's also a C3 Pluriel Charleston in Paris, paying homage to the famous 2CV, which is celebrating its 60th anniversary this year.

It features a two-tone colour scheme of black and red, and premium touches such as leather upholstery, 15-inch aluminium wheels and chrome trim fittings.

It should go on sale early in 2010 from around £15,000, which is considerably less than you're likely to have to pay for the original 2CV that has been tarted up by fashion label Hermes for display here.