Abstract
A project is being carried out with the aim to develop an individual, engine-driven, covered vehicle for handicapped people. The prime object is that this vehicle should meet the requirements of the handicapped. Nevertheless, choices had to be made by the parties concerned that could have violated this goal. In particular, this was experienced when designing the interior to accommodate large persons on the one hand and meeting the aesthetic requirements of the exterior, which called for a smaller height, on the other. Marketing ergonomics was used to deal with this problem.