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
Mary Craig Sinclair Mary Craig Sinclair Mary Craig Sinclair (1882–1961) was a writer and the wife of Upton Sinclair. She was born Mary Craig Kimbrough in Greenwood, Mississippi on February 12, 1882, the oldest child of Mary Hunter (Southworth) and Allan McCaskill Kimbrough, a judge. Beginning at age 13, Mary studied at the Mississippi State College for Women (starting with what were essentially high school classes) and graduated from the Gardner School for Young Ladies in New York City in 1900. Her father was a wealthy attorney with banking interests, and a member of one of the oldest elite Mississippi families. Kimbrough (called