I photographed this car at the Northern Classic Car Show at the G-Mex exhibition centre in Manchester in August 1990 and the only note I made about it at the time was that it was an SS 2.
William Lyons' Swallow Coachbuilding Company first started making the SS 1 and SS 2 cars in 1932, the name of the company being changed to SS Cars Ltd in 1934, and again to SS Jaguar in late 1935 - the 'SS' being dropped in 1945 for obvious reasons. The SS 2 was produced until 1940, first with a 4-cylinder inline 1,006cc engine, changed after 1934 to 1,343cc or 1,608cc. The DVLA record shows that AAR 451 was last taxed in 1990 and has a 1,479cc engine.