Capable of 106mph, 0-60mph in 10.9sec and more than 100mpg, but only manages 12 miles in electric-only mode.

The driver can choose either hybrid or electric-only mode, with the latter providing the strongest initial acceleration.

Driving in electric-only (EV) mode has accounted for one third of the distance driven in the demonstration.

The difference noted in the rules state that a 'hybrid' Formula car must complete a 75-meter acceleration run in electric-only mode in less than 10 seconds.

Average CO2 emissions were estimated at 30g/km with a claimed 60 mile range electric-only mode.

They are full hybrid, able to run in electric-only mode, with larger batteries and the ability to recharge from the electric power grid.

After launch, Peugeot's diesel-electric HYbrid4 technology will be made available, providing 200bhp, all-wheel drive and emissions of 99g/km - or zero in electric-only mode.

There's an electric-only mode for low-speed operation, while the four-wheel drive operates only when required.

In electric-only mode, the new car will have a range of 16 miles.

Early software glitches mean that even when you want to drive in electric-only mode, the engine clanks into life to calibrate systems.