The Triumph Tigress, also sold as the BSA Sunbeam, was a scooter designed to have good performance and handling for the motorcycle enthusiast. The entry of the BSA group into the scooter field was announced by Edward Turner in October 1958. The 250 cc model would have a cruising speed of 55 to 60 mph and petrol consumption of 120 miles per imperial gallon. A prototype 250 cc BSA Sunbeam was displayed at the 1958 Earl's Court Cycle and Motor Cycle Show. Manufacture started in late 1959, but delivery difficulties were acknowledged due to problems with recruiting labour, although it was claimed that the group had a manufacturing capacity of 50,000 machines a year.