Blackjack Cars was a small British manufacturer based in Helston, Cornwall, associated with the designer Richard Oakes, who had previously created well-known kit car designs such as the Nova, the Midas and the Deltayn Pegasus. The Blackjack marque was notable as the first project that Oakes brought into production under his own direction. The company's principal model, the Blackjack Avion, was a three-wheeled cyclecar powered by a Citroën 2CV engine.…