Jaguar SS 100: the pre-war sports car that named the marque (1936-1939) The SS Jaguar 100 was William Lyons' pre-war sports car, a short, fast open two-seater whose name claimed a genuine 100 mph and which carried the Jaguar name from 1936. A guide to the SS 100, the SS Jaguar saloons, the replica question, and what they are worth.