Ever wanted to go camping but always thought campervans consumed too much fuel? A camper conversion for the Toyota Prius could be your answer.

Looking a little like a giant telephone handle stuck onto the top of a Prius - or even a Smurf if you owned a blue Prius - the camper conversion was unveiled at the 2012 Tokyo Auto Salon in Japan over the weekend.

It's a custom (obviously) creation developed by a camping specialist called Campinn. The company starts out by cutting rear sections of the Prius out and adapting a special fibre-reinforced plastic mould over the top.

The large mould conceals a door entrance at the rear, with its own roller blind, and two beds - one of which sits on top of the roof, and another that takes place of where the rear seats and boot space used to be.