Sinclair C5 computers like the hugely successful ZX81 and ZX Spectrum, an affordable electric vehicle could unleash pent-up demand for a market that did not previously exist. However, Sinclair performed no market research to ascertain whether there was actually a market for his electric vehicle; as the director of the Primary Contact advertising agency commented in January 1985, the project continued all the way to the prototype stage "purely on the convictions of Sir Clive". With Sinclair's new specifications in hand, Ogle worked on a three-wheeled design dubbed the C5, which bore similarities with the earlier three-wheeled Bond Bug – another Ogle
Hugh Macdonald Sinclair Hugh Macdonald Sinclair Hugh Macdonald Sinclair, FRCP (4 February 1910 – 22 June 1990) was a doctor, medical researcher, and expert in human nutrition. He is most widely known for claiming that what he called "diseases of civilization" such as coronary heart disease, cancer, diabetes, inflammation, strokes and skin disease are worsened by "bad fats". Hugh Macdonald Sinclair was the third of the four children of Colonel Hugh Montgomerie Sinclair and Rosalie Sybil Jackson. Through his father, he was descended from the Viking monarch of Finland, Woldonius, and the St Clair cousins of William the Conqueror. His great grandfather was