The 1936-1940 SS Jaguar 21/2 Litre and 31/2 Litre were four-seat running mates to the romantic SS 100 roadster, and were the first cars to carry the Jaguar label. The chassis and bodywork for these cars came from SS Cars, Limited.

The 1936-1940 SS Jaguar 21/2 Litre and 31/2 Litre featured standard transmissions and engines, the latter of which were converted from a side-valve to an overhead-valve layout. The cars had mechanical brakes and solid-axle front suspension, but also boasted great style and roomy interiors in four-door sedans and two-door convertible coupes. Massive headlamps and wire-spoke wheels handsomely set off the flowing William Lyons' lines, and cabins were trimmed in the expected wood and leather.

As with the SS 100, a larger 3.5-liter engine was offered beginning in 1938, at which time bodies were switched from wood-framed to all-steel construction, and the wheelbase was stretched an inch. Also offered was a very similar short-wheelbase (108 inches) 11/2 Litre with a 1608cc side-valve Standard four (later a 1776cc ohv), but these are nowhere nearly as desirable today. Quicker than previous SS four-seaters, the rare 3.5-liter models could do at least 90 mph.

Pluses of the 1936-1940 SS Jaguar 21/2 Litre and 31/2 Litre:

  • Fleet and fleet-looking
  • Extra-desirable "dropheads"
  • Sporting sedans
  • Simple, easy mechanical rebuild
  • Ample club support and interest

Minuses of the 1936-1940 SS Jaguar 21/2 Litre and 31/2 Litre:

  • Prior to 1938, the bodies tend to rot
  • No body parts available
  • Marginal brakes
  • Old-fashioned road manners

Production of the 1936-1940 SS Jaguar 21/2 Litre and 31/2 Litre:

  • 21/2 Litre: 5,369
  • 31/2 Litre: 1,304

Specifications of the 1936-1940 SS Jaguar 21/2 Litre and 31/2 Litre:
Wheelbase, inches: 119.0 (1936-37), 120.0 (1938-40)
Length, inches: 186.0

Weight, pounds: 3,500-3,650
Price, new: NA

Engines for the 1953-1963 AC Ace:

TypeSize
Horsepower
Years
ohv I-6
2,664 cc (163 cid)
105*
1936-1940
ohv I-63,485 cc (213 cid)125*
1938-1940

* Gross

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