Sinclair C5 major consumer organisations published sceptical evaluations. The Automobile Association questioned many of Sinclair's claims in a report published at the start of May. It found that the range of the vehicle was typically only about 10 miles (16 km) rather than the promised by Sinclair, and reported that the C5's battery ran flat after only on a cold day. The C5's running speed was more usually around than the claimed , while its running costs compared unfavourably to that of a petrol-driven Honda PX50 moped. The stability, general roadworthiness, and especially the safety of the C5 were questioned, and the
Clive Gallop Clive Gallop Colonel Reginald Clive Gallop (4 February 1892 - 7 September 1960) was an engineer, racing driver and First World War pilot. He was one of the team which developed their first engine for Bentley Motors. Clive Gallop joined the Royal Flying Corps, flying aeroplanes over the Western Front. He commanded a number of flights, including No. 56 Squadron. London racing driver, motor vehicle dealer and engineer W. O. Bentley had suggested aluminium pistons to his car supplier Doriot, Flandrin & Parant and had them installed in those cars he imported. Following commissioning on the outbreak of war as