4×4S.ORGTHE REGISTRY BASE MODEL · 1940–45
BASE MODELUnited Kingdom

Armoured Car (1940–45)

5,400 built between 1940 and 1945 by the Rootes Group’s Karrier division: a Guy armoured car body on Karrier’s KT 4 artillery tractor chassis, 6.3 tonnes with 21 mm of armour, a Rootes six of 90 hp, 50 mph and 200 miles. Three crew, or four in the Mk III.

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Sources & evidence
Armoured Car (1940–45) — Humber Armoured Car Mk IV at military and air show in Reading PAChalkocat · CC BY-SA 3.0 ↗
MODEL LINEArmoured CarBUILT BYHumber Limited (Rootes Group, Karrier division)PRODUCED1940–45OPERATED INUnited Kingdom, Canada, IndiaPRODUCTION5,400LAYOUT4 wheels · 112″

The record

Guy had the design but not the capacity, so Karrier built it — and the Karrier name was dropped to avoid confusion with the tracked Universal Carrier, leaving Humber’s. Marks I to III carried 15 mm and 7.92 mm Besa machine guns; about 2,000 Mk IVs took the American M5 or M6 37 mm gun instead. British, Canadian, Indian and Portuguese forces used them, in North Africa, Burma and afterwards at Goa.

Specification

MANUFACTURERHumber Limited (Rootes Group, Karrier division)
MANUFACTURED1940–45
ENGINERootes six-cylinder petrol, 90 hp (67 kW)Rootes six-cylinder petrol
PRODUCTION RUN5,400
COUNTRY OF ORIGINUnited Kingdom
OPERATED INUnited Kingdom, Canada, India, Portugal
STATUSout of production
RECORD KINDBase model
MODEL LINEArmoured Car
FAMILYArmoured Car
WHEELS4
NOMINAL WHEELBASE112″
BODY STYLETurreted
VARIANTS1

Catalogue fields describe the vehicle's structure and body as this registry records it. They are not certified factory measurements, and no performance figures are published here.

Body styles & colours

Factory colours

  • Deep Bronze Green
  • Light Stone

Codes on hover. Hex values are representative approximations of period paint unless a source states a measured value.

AI rendering impression

An AI rendering impression starts from a 3D model of this vehicle, which an image model then paints into a scene. It is an artist's impression of the type, made to give a feel for the vehicle in its element — not a photograph, and not a record of any particular vehicle.

Proportions, fittings, markings, colours and the setting can all drift from the original in the process. For the vehicle's actual details, rely on the specification, the photographs and the cited sources on this page.

Sources

  1. 1Humber Armoured Car ↗Wikipedia · accessed 2026-09-23SOURCE

Registry record updated 2026-09-23 · status: researched