Founded by John Weller and John Portwine in 1904, AC began manufacturing basic commercial vehicles until the release of the 1908 AC Sociable. The company experienced immense difficulty in the 1920's, including the founders leaving and being liquidated in 1929. But somehow they managed to survive for the next 30 years, manufacturing a 3 wheeled invalid car to help remain a viable concern. But the masterpieces were to come in the 1950's, with the release of the Ace and fearsome Ford V8 powered Cobra.
) put an end to AC'S other endeavours but almost the entire production of 1500 units went to the US. They are authentic collector items. If you find one - grab it.
Also see: AC Heritage