One of the five vehicles built by Sunbeam for the 1912 Coupe de l’Auto Race. The competition, held over a 47-mile circuit in Dieppe, was open to 3-litre cars,
and the company developed their entries from the Touring 12/16. This car was a regular participant in Vintage Sports Car Club events up until the 1980s.
(And yes, that's me taking the picture, reflected in the brass!)

Engine: 2996cc, in-line 4, sidevalve, 74 bhp
Top Speed: 80 mph
Cost new: not marketed.
Manufacturer: Sunbeam Motor Car Company, Wolverhampton