Car of the Month – August

1956 Jaguar XK140 Roadster


  • Engine – 3.4 liter, straight six
  • Horsepower – 210 hp
  • Transmission – 4-speed manual
  • Curb Weight – 3135 lbs
  • 0-60 time – 8.4 seconds
  • ¼ mile time – 16.5 seconds
  • Top speed – 140 mph
  • Number built –  3,301
  • MSRP price – $3,595.00


The Jaguar XK140 was a sports car manufactured between 1954 and 1957. It was an updated version of the XK120, Jaguar’s iconic post-war sports car that claimed 120 mph top speed (hence the number in the name). The updates included better brakes, rack-and-pinion steering, and modern tube-type shock absorbers instead of the older lever-arm design.

The primary visual changes were the more substantial front and rear bumpers and chrome accent trim on the hood and trunk. The XK140 features a 3.4-liter, straight-six engine with dual overhead cams, factory experimental heads and twin two-inch SU carburetors, delivering 210 horsepower at 5750 rpm.

The Jaguar XK140 Roadster was the British supercar of the 1950s.