page_title: Hillman 20
section_title: 1936 a new body and bigger 20 horsepower engine
hierarchical_section_title: Hillman 20 / Hillman Hawk / 1936 a new body and bigger 20 horsepower engine
caption_attribution_description: Humber front suspension (Autocar Handbook, 13th ed, 1935).jpg
context_page_description: The Hillman Wizard 75, Hillman Twenty 70, Hillman Hawk and their long wheelbase variants Hillman Seven Seater and Hillman 80 models were a series of 20 horsepower medium priced 5-7 seater executive cars made by Hillman during the 1930s.
  Built at a time when body and chassis were quite separate structures Hillman's 20 horsepower chassis was given three different body shapes in five years and a grand total of five different names if the long wheelbase cars are included. The same body shapes and chassis were used for Hillman's 16 horsepower offering though that smaller engine was not offered with their long wheelbase cars.
  Towards the end of the 1930s the badges of the current models were changed by the Rootes brothers to Humber Snipe.
context_section_description: A new streamlined body was announced in October 1935 with a new name for the 20, Hawk. Chassis design was by William Haynes assisted by Alec Issigonis. The modern all-steel semi-monocoque style body was designed by Thrupp & Maberly, London coachbuilders also owned by Rootes Group. The new body houses the spare wheel in the tail. Its new lines "are planned to flow smoothly from the radiator". . . "to the trunk at the rear with the streamlined well-valanced wings merging harmoniously into the whole". As before the sloping single-piece windscreen may be opened to give better vision in fog.
  The new model's Superpower engine is enlarged 13 per cent achieved by lengthening its stroke by 14 mm. Although the cubic capacity rose from 2810 cc to 3181 cc this did not affect the car's tax rating because the RAC formula takes no account of an engine's stroke. The only other changes from the engine of the Twenty 70 were the introduction of replaceable hardened steel valve seats and improved steel-backed main bearings for the crankshaft. The instrument panel now has a rheostat switch to vary the lighting at will.
caption: Rootes Group's Evenkeel independent front suspension unit
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