Kia's three-seater, three-metre long electric POP is set to star at this year's Paris Motor Show
The futuristic looking Taiki (meaning 'atmosphere') was Mazda's attempt to steal the 2007 Tokyo motor show.
It was powered by a 1.6-litre rotary engine.
The Morgan LIFEcar from 2008. LIFE stands for LIghtweight Fuel Efficient, a clue to this sports car's environmental aspirations. Originally designed to use a hydrogen fuel cell for power, the LIFEcar has since adopted a hybrid powertrain said to give the car a 1,000 mile range.
It is expected to go on sale in 2012.
Ford presented the Inteceptor Concept at the 2007 Detroil motor show. Not many environmental credentials here,
the Inteceptor is powered by a 5.0-litre V8 petrol engine
The Mazda Taiki again. Its unusual rear wheel arrangement was designed to maximise air flow
Another gem from the 2007 Tokyo show - Honda's Puyo fuel cell vehicle
Volkswagen's Microbus concept was first unveiled in 2001 and updated several times over the following years.
Nevertheless, a concept it remains
The aptly-named Fiat Ecobasic from 2000 used a 1.2-litre diesel engine and plastic panels over a space frame chassis.
It managed 94mpg but the project was canned in 2001 due to EU safety regulations.
