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£68,171
1933 MG K1/K3 Magnette Conversion
United States • 15 Aug 2026
Vehicle Details
AI Listing Summary
This 1933 MG K1 Magnette has been expertly converted to K3 racing specification, featuring a supercharged inline-six, pre-selector gearbox, and period-correct racing aesthetics. The car presents in British Racing Green with green leather interior and is offered at no reserve, making it a significant find for collectors of vintage MG race cars.
Condition
8
The car is described as a K3 Magnette conversion with hand-formed aluminum bodywork in British Racing Green. It features Brooklands windscreens, Rudge-Whitworth wire wheels, and green leather bucket seats. While the description details extensive equipment and modifications for racing specification, including a supercharger and pre-selector gearbox, it also notes the absence of a speedometer and odometer, meaning mileage is unknown. The car has been started monthly under current ownership. Given its conversion to racing spec and unknown mileage, it suggests it has been maintained and possibly used, but with some elements requiring close inspection and potential reconditioning common for a car of this age and purpose. It is not pristine or outstanding due to the lack of some standard instrumentation and unknown mileage, but the overall description points to a well-presented and mechanically attended vehicle for its type.
/ 10
Transmission:
Automatic
Chassis No:
K0359
Odometer:
[Odometer Reading]
Reg Number:
LJ8 833
RHD/LHD:
RHD
1,087cc Inline-Six Front-Mounted Supercharger SU Carburetor Four-Speed Pre-Selector Transmission British Racing Green Paint Custom Rear Tonneau Cover Brooklands Aero-Style Windscreens Side-Mounted Exhaust System Green Leather Upholstery Bucket Seats Bluemels Brooklands Steering Wheel 19" Rudge-Whitworth Wire Wheels Andre Hartford Friction Dampers Mechanical Drum Brakes
This 1933 MG K1 Magnette left the company’s Abingdon, England, assembly plant on December 7, 1933, finished in black with a red interior and matching wheels.
It was originally sold through Knotts Brothers, Ltd.
of Bournemouth to a customer in Dorset and later in life was converted to K3 specification by UK-based MG specialist Blanton Jones.
The car’s 104″ wheelbase was shortened to a race-bred 94″, its 1,087cc inline-six was fitted with a front-mounted Roots-type supercharger, and an E.N.V.
four-speed pre-selector gearbox was installed along with Andre Hartford friction dampers, Rudge-Whitworth 19″ wire wheels, Block...
Points of note
£68,171
Lowest Price (Since 2020)
£90,328
Median Price (Since 2020)
£228,197
Highest Price (Since 2020)
World Record
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Bottom 40%
The sale price places it in the bottom 40% of sold prices we've ever seen for the MG Magnette K1
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Rare Sale
This vehicle comes to market rarely. In auction records we've only seen 4 sold before
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