2. Quantum Xtreme
Price: around $4,200 (£3000) for base Xtreme kit
Quantum is produced in Britain by the Quantum Sports Cars company, founded in 1987. The Xtreme basic kit ranks second on our list of easiest and cheapest kit cars to build. It is one of the cheapest there is if you are a beginner in the kit car building and the one of the old models still being produced. It is a two-seat sports car inspired by Lotus 7.
