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The Morgan story · Appendix

Dating a Morgan

Morgans changed in small steps. These are the steps that date a car.

Cover: A 1951 Plus 4, flat radiator. Photo: Sicnag, CC BY 2.0, via Wikimedia Commons.

If you have ever wondered just how old your Morgan is, start here! Owners use this to place a car in its year. It comes from Mark Braunstein’s model chart, and it is part of the Morgan story.

For owners

How to date a Morgan

The production changes that help place a car, in date order, from Mark Braunstein’s chart. The factory phased new parts in gradually, so a car can sit either side of a change.

  1. c. 1924

    First Stork mascot seen

    Date on the chart

  2. c. 1934

    Three-wheeler V-twins change from J.A.P. to Matchless

    Year read from the chart

  3. c. 1951

    Plus 4 and 4/4 rear axle changes from Moss to Salisbury

    Year read from the chart

  4. c. 1953–1954

    Plus 4 interim radiator (the “high cowl”)

    Year read from the chart

  5. c. 1955

    Plus 4 chassis changes from trunnion to shackle: the rear springs sit inside a tube, then in shackles

    Year read from the chart

  6. c. 1959

    Plus 4 bonnet knobs change from bullseye to smooth

    Year read from the chart

  7. c. 1960

    Plus 4 disc brakes, from chassis 4671

    Year read from the chart

  8. 1962–1963

    Magnolia gauges change to black

    Date on the chart

  9. c. 1962

    Plus 4 toggle switches

    Year read from the chart

  10. c. 1962–1963

    Sidescreens change from one piece to sliding; the drophead coupé gets a curved windscreen

    Year read from the chart

  11. 1965

    Seat belts

    Date on the chart

  12. c. 1967

    Generator changes to an alternator (the chart’s estimate)

    Date on the chart

  13. c. 1972

    Switch to a dual brake master cylinder

    Year read from the chart

  14. c. 1972

    Smiths heater changes from a circular to a box core

    Year read from the chart

  15. c. 1976

    Plus 8 body made 4 inches wider

    Year read from the chart

  16. c. 1978–1995

    Cars for the US run on propane. Sources differ: the Isis history has the conversions from 1974 to 1992 (Chapter V)

    Year read from the chart

  17. c. 1981

    Coloured wing beading available

    Year read from the chart

  18. c. 1982

    Plus 8 rack-and-pinion steering

    Year read from the chart

  19. 1986 on

    Wood preservative on all cars

    Date on the chart

  20. No date given

    Salisbury rear axle, then the BTR axle

    No date on the chart — between 1986 and 1997

  21. c. 1990–1992

    4/4 narrow body changes to the wide Plus 8 body (4 inches wider); servo-assisted brakes standard

    Year read from the chart

  22. 1997 on

    Superform on all cars (the chart’s term)

    Date on the chart

  23. 1998 on

    Long door and electric demisters on all cars

    Date on the chart

  24. No date given

    Chassis numbers change from 5 to 17 digits (VIN)

    No date on the chart — between 1998 and 2000

  25. 2000 on

    Galvanised chassis on all cars

    Date on the chart

  26. No date given

    Plastic radiators

    No date on the chart — between 2000 and 2008

  27. No date given

    Steering bearings replace damper blades

    No date on the chart — between 2000 and 2008

  28. c. 2006

    Easy-up hood on the Plus 4

    Year read from the chart

  29. 2008–2009

    New winged logo

    Date on the chart

  30. No date given

    Spare wheel optional; parcel-shelf pass-through available

    No date on the chart — around 2010

  31. Late 2011

    Mazda MX-5 gearbox standard on the Plus 4

    Date on the chart

  32. 2012 on

    Mazda MX-5 gearbox on all cars except the Roadster

    Date on the chart

  33. c. 2016

    The galvanised chassis ends; chassis are painted instead

    Year read from the chart

  34. April 2018

    Roadster Series 4 rear suspension changes from leaf springs to a five-link coil-sprung rear

    Date on the chart

  35. c. 2020

    The ladder frame with sliding-pillar front suspension ends

    Year read from the chart

  36. 9 November 2022

    Plus Four and Plus Six rebranded for the 2023 model year

    Date on the chart

  37. Model year 2023

    Electronic stability control on the Plus Four

    Date on the chart

Plus 4 engine numbers

Read the prefix

V
Standard Vanguard
TS
Triumph TR2 and TR3
CT
Triumph TR4

Every TR2–TR4 engine fitted to a Morgan ends in ME.

From Braunstein chart, v139.

Plus 4 speedometers

1950–1958
110 mph, cream, with a clock
1959–1960
110 mph, cream, without a clock
1961–1962
120 mph, cream, with toggles
c. 1963–1964
120 mph, black
c. 1965–1969
140 mph, black

Chassis numbers that mark a change

4671
Plus 4: disc brakes from here
R7475
Plus 8: Rover four-speed gearbox from here
R7494
Plus 8: the last Moss gearbox
R8151
Plus 8: Rover five-speed gearbox from here
606
Plus 4 two-seaters with the flat radiator, as the chart counts them
117
Plus 4 drophead coupés with the flat radiator
433
Plus 4 drophead coupés with the cowled radiator

From Braunstein chart, v139.

Words owners use

A short glossary

The terms that turn up when people talk about a Morgan’s age and parts, in plain English.

Sliding pillar
The front suspension HFS Morgan designed for his first car. Each front wheel rides on a stub axle that slides up and down a fixed vertical pillar, against a coil spring. He patented it in 1910, and the idea itself is older. Morgan stopped using it in 2020. Wikipedia, Patent GB 20,986, Braunstein chart, v139 The end of the sliding pillar.
Ash frame
The wooden frame under a Morgan’s body. Morgan says ash is the only wood it uses for frames, designed on a computer today and still made by hand, with aluminium panels over it. The 4-4 of 1936 had an ash frame panelled in steel. Morgan, 21st Century Coachbuilding, Morgan, History (2022)
Flat, interim and cowled radiators
The three front ends of the early Plus 4. Until late 1953 the radiator stood upright and flat, as on every four-wheeled Morgan. A short run of cars, about nineteen, had an interim cowl that curved back only at the top. From 1954 the cowl curved at the top and the sides. Wikipedia, gomog.com Flat, interim, cowled.
Moss gearbox
A four-speed gearbox made by Moss. The Plus 4 had one from its launch in 1950, and the first Plus 8s had one too; Morgan gives the Plus 8’s four-speed as 1968 to 1977. Wikipedia, Unsigned company history, Morgan, Plus 8 page The V8 years.
4-4 and 4/4
The name means four cylinders and four wheels, chosen in 1936 to tell the car from the three-wheeler. The Series I ran from 1936; the Series II of 1955 brought a Ford engine, and later series followed with new Ford engines: III in 1960, IV in 1961 and V around 1963. Morgan, History (2022), Wikipedia, Braunstein chart, v139 The fourth wheel.
V-twin and F-type
The two kinds of vintage three-wheeler. The V-twins, from 1910, had a tubular steel chassis and a J.A.P. V-twin engine at the front. The F-type, from about 1933, had a Ford four-cylinder engine in a conventional bonnet, on a steel ladder-frame chassis. Morgan, History (2022), Wikipedia Three speeds, and a Ford.
Runabout, Grand Prix, Aero, Super Sports
Names from the three-wheeler years that came back. Runabout was the first production model. The Grand Prix was named after the 1913 race at Amiens. The Aero, from 1920, was named for aviators and inspired by Albert Ball’s car. The Super Sports name returned for the Aero SuperSports of 2009. Morgan, History (2022), Unsigned company history Amiens.
Trunnion and shackle chassis
Two ways of fixing the rear springs. On a trunnion chassis the springs are secured inside a tube that runs between the chassis rails; on a shackle chassis they are held in shackles. Braunstein’s chart marks the Plus 4 changing from trunnion to shackle about 1955. Braunstein chart, v139 Flat, interim, cowled.
Beetleback, barrelback and the Flying M
Two shapes of vintage three-wheeler tail. On Braunstein’s chart the beetleback gives way to the barrelback about 1934, and the “Flying M” radiator mascot arrives with the barrelbacks; the Stork, first seen about 1924, had been used before it. Braunstein chart, v139 Three speeds, and a Ford.
Bustle back
A Plus 4 body style named on Braunstein’s chart, running from about 1954 to 1958. The chart ends its line at chassis 4023 and does not describe the shape. Braunstein chart, v139
Standard Special
The 4/4 of 1939 and after with Standard’s 1,267 cc engine in place of the Coventry Climax. Braunstein’s chart counts between 539 and 700 Standard Special engines produced. Braunstein chart, v139, Wikipedia Sir John Black’s engine.
Superform
The chart’s word for a way of shaping the aluminium body panels, which it marks on all cars from 1997. Braunstein chart, v139
Flapper, Hotwire and GEMS
The names the chart gives to stages of the Plus 8’s Rover V8. The “Flapper” is the SD1 3.5-litre with fuel injection, about 204 bhp, from about 1984; the “Hotwire” is the 3.9-litre (about 190 bhp) and then the 4.6-litre (about 215 bhp); and GEMS is a 4.0-litre of about 190 bhp. Braunstein chart, v139 The V8 years.
CX, CXV and CX-T
CX is the bonded-aluminium platform that arrived with the Plus Six in 2019 and carries the Plus Four from 2020. The Supersport of 2025 is on a developed platform, the CXV. The CX-T is the off-road Plus Four of July 2021, which the chart says was limited. Wikipedia, Braunstein chart, v139 Today.

Sources

Where this comes from

Where every fact on this page that is not from the Registry itself comes from.

Show all 14 sources
  1. Braunstein chart, v139

    Mark Braunstein, “The Morgan — First and Last of the Real Sports Cars”, a model timeline chart, version 139, 24 June 2026. Compiled from the Illustrated Morgan Buyer’s Guide (Ken Hill, 1989), The Cars & The Factory (John Tipler, 1993), Original Morgan (John Worrall & Liz Turner, 1992) and Morgan 3 Wheeler: The Complete Story (Peter Miller), with contributions from Morgan historians and enthusiasts, eMOG, Talk Morgan and the Morgan Motor Company.

    Not an official Morgan Motor Company publication; its author notes it may contain errors, and that new technology reached some cars of a model year before others. Where the chart gives no date, the year shown here is read from the item’s position on the chart and marked “c.”.

  2. Wikipedia

    Wikipedia, “Sliding pillar suspension” (text CC BY-SA 4.0; facts cited, not reproduced). Checked 4 October 2026.

  3. Patent GB 20,986

    H. F. S. Morgan, “Improvements in the Design and Construction of Tri-cars or other Light Automobile Vehicles”, British patent 20,986 (applied 8 September 1910, accepted 17 August 1911), via Google Patents. Checked 4 October 2026.

  4. Morgan, 21st Century Coachbuilding

    Morgan Motor Company, “21st Century Coachbuilding”, morgan-motor.com (read 4 October 2026). Checked 4 October 2026.

  5. Morgan, History (2022)

    Morgan Motor Company, “Morgan History”, morgan-motor.com/history/, as archived by the Internet Archive’s Wayback Machine on 22 May 2022. Checked 4 October 2026.

    The company’s own account. The live page no longer exists, and the archived copy shows only the opening of each paragraph.

  6. Wikipedia

    Wikipedia, “Morgan +4” (text CC BY-SA 4.0; facts cited, not reproduced). Checked 23 September 2026.

  7. gomog.com

    Blair, “Morgan four-wheeled cars 1936–1995”, gomog.com. Checked 4 October 2026.

    An enthusiast’s page. Its production figures differ from Wikipedia’s in places.

  8. Unsigned company history

    “Morgan Motor Company History”, an unsigned history in the company’s voice (about 2006), copied as a PDF by a Norwegian Morgan club. Checked 4 October 2026.

    Origin unconfirmed. It reads as Morgan’s own website history, but the original page has not been found. It has errors (it puts the 1939 Le Mans car first in class, when the results say second), so nothing here rests on it alone where it matters.

  9. Wikipedia

    Wikipedia, “Morgan Plus 8” (text CC BY-SA 4.0; facts cited, not reproduced). Checked 4 October 2026.

  10. Morgan, Plus 8 page

    Morgan Motor Company, “Plus 8”, past models, morgan-motor.com (read 4 October 2026). Checked 4 October 2026.

    Morgan’s own summary page: it lists the versions as “76-04” and “12-19” and a four-speed gearbox for “1968–77”, with no day or month.

  11. Wikipedia

    Wikipedia, “Morgan 4/4” (text CC BY-SA 4.0; facts cited, not reproduced). Checked 4 October 2026.

  12. Wikipedia

    Wikipedia, “Morgan 3-Wheeler” (text CC BY-SA 4.0; facts cited, not reproduced). Checked 4 October 2026.

  13. Wikipedia

    Wikipedia, “Morgan Plus Six” (text CC BY-SA 4.0; facts cited, not reproduced). Checked 4 October 2026.

  14. Wikipedia

    Wikipedia, “Morgan Supersport” (text CC BY-SA 4.0; facts cited, not reproduced). Checked 4 October 2026.