By Geoff Adams-Spink
Age & disability correspondent, BBC News website
A device that lifts a wheelchair into a box on top of a car roof and a mobility scooter that can turn on its own axis are the stars of this year's Mobility Roadshow at Kemble Airfield in Gloucestershire.The Roof-Spider can lift manual, folding wheelchairs weighing up to 25kg into a storage box that sits on the roof of an MPV or estate car.

Because of its compact size, ability to turn a full circle on its own axis and to move sideways, the company expects it to appeal to people who want to use them indoors and even at home.
Most mobility scooters are primarily designed for use outdoors.
The German-engineered CP3 has its rear wheels separately driven by hub motors that can also be individually steered.

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more:
http://news.bbc.co.uk/2/hi/technology/6908291.stm