Your height, inseam and weight are all taken into account - even the possibility that you'll be toting around a toddler in a child seat on the rear rack is considered in the equation that decides the final shape of the frame.
The Abi-Loader device - from Hertfordshire-based Steering Developments - can be used to deliver a folding or fixed-frame wheelchair to the driver's or passenger's door from the rear of the vehicle.
These include Dual Camera, which allows simultaneous use of front and rear cameras, and Drama Shot, which presents a series of shots as a collage in a single frame.