Mike Farish visits a model racing-car manufacturer, and discovers an industry that is just as wrapped up in the challenges and techniques of design as its lifesize counterpart. Models or not, the vehicles it produces do share some common traits with full-size F1 cars and indeed mass-produced vehicles. These include: the need for compressed development timescales; the incorporationat least at the top end of the range of advanced materials such as carbon fibre; a worldwide supply chain; and the use in their design of sophisticated computer-aided design (CAD).