This is a photograph that I took before the start of the Lancashire Automobile Club's Manchester to Blackpool Veteran and Vintage Car Run in June 1978.
It's a 1907 Rover 20 with a Roi-des-Belges body, a car that was produced from 1907 to 1910 and had a 4-cylinder inline 3,251cc engine. The programme of the event had this note about the car (with the original spelling error);
12 Leyland Motors Historic Vehicles Ltd., Longbridge, Birmingham.
1907 Rover, Roi de Belge Tourer, 20 h.p.
This model was originally announced in 1905 as the 16/20 h.p. car. Cylinder dimensions of 95mm x 110 mm were the same as those of the 1905 6 h.p. car and several components were common. The model achieved fame by winning the Tourist Trophy Race in the Isle of Man during 1907 driven by Ernest Courtis, who was Rover's Chief Tester at the time. His average speed was 28.8 mph for six laps of the 40.3 mile circuit. The car's normal maximum in "as sold" condition was about 45 mph and the chassis price was £375.
I understand that this car is now in the British Motor Museum in Gaydon, Warwickshire.