ADO Codes were introduced in the 1950s
With ADO 06 FX4 Taxi
It has been stated in some quarters that ADO
stands for Amalgamated Drawing Office
This is incorrect, it stands for:-
Austin Drawing Office
It would appear that the following were never issued.
ADO 1 to 5, 7, 18, 29, 33, 43, 45, 48, 54/55, 57, 60, 62/3/4/5, 72.
ADO 6 Austin FX4 Taxi.
ADO 8 Austin A40 Farina.
ADO 9 BMC Farina models Austin A55 Cambridge MkII, Morris Oxford Series V, MG Magnette MkIII, Riley 4/68, Wolseley 15/60.
ADO 10 Austin A90 Westminster.
ADO 11 475cc 2-cylinder A-Series engine that never reached production, essentially half a 948cc A-Series.[2]
ADO 12 Hydrostatic transmission prototype, installed in an Austin A35-A40 Farina.
ADO 13 Austin-Healey Sprite.
ADO 14 Austin Maxi.
ADO 15 Mini.
ADO 16 1100/1300.
ADO 17 Austin 1800 & 2200, Morris 1800 & 2200, Wolseley 18/85 & Six.
ADO 19 Austin Ant, cancelled as it would interfere with Land Rover sales.
ADO 20 Mini MkIII and Clubman.
ADO 21 Mid-engined MG sports car to replace the MGB, cancelled in favour of the Triumph TR7.
ADO 22 Proposed replacement for the Austin 1100.
ADO 23 MGB.
ADO 24 Austin-Healey 4000 prototype.
ADO 25 BMC E-Series engine 6-cylinder.
ADO 26 Austin Healey 3000 MkIII.
ADO 27 Austin Tasman / Austin Kimberley.
ADO 28 Morris Marina.
ADO 30 Grand Tourer project.
ADO 31 MGA 1600.
ADO 32 BMC E-Series engine 4-cylinder.
ADO 34 Pininfarina design for 2 seat roadster based on Mini.
ADO 35 Coupe version of ADO34.
ADO 36 Austin-Healey versions of ADO34 and ADO35.
ADO 37 Vanden Plas Princess 3 litre.
ADO 38 BMC 1600 Farina range Riley 4/72, Morris Oxford Farina, Wolseley 16/60, Magnette MkIV.
ADO 39 Proposed FX4 Taxi replacement.
ADO 40 Wolseley 24/80.
ADO 41 Austin Freeway Utility prototype.
ADO 42 Austin-Healey Sprite MkII.
ADO 44 Austin A40 Farina MkII.
ADO 46 Farina B-Series diesel models.
ADO 47 MG Midget MkI.
ADO 49 Farina B-series pickup truck based on Riley 4; built and sold in Argentina.
ADO 50 Mini Cooper and Cooper S.
ADO 51 Austin-Healey 3000 MkIV, a rebadged MGC.
ADO 52 MGC.
ADO 53 Austin A110 Westminster.
ADO 56 MG Sports project.
ADO 58 Joint BMC/Rolls-Royce/Bentley coupe project.
ADO 59 Morris Minor 1000.
ADO 61 Austin 3-Litre.
ADO 66 Vanden Plas Princess 4-litre R.
ADO 67 Austin Allegro.
ADO 68 "Project Condor" sports car project.
ADO 69 Proposed FX4 Taxi replacement.
ADO 70 Michelotti concept for a Mini-based coupe.
ADO 71 Austin/Morris 18-22/Princess.
ADO 73 Morris Marina Series 2.
ADO 74 Concept supermini model as a possible Mini replacement.
ADO 75 MGB GT V8.
ADO 76 Proposed revised MGB but resulting in the rubber-bumper model.
ADO 77 Proposed second generation Morris Marina that never reached production.
ADO 88 Became project LC8 and then Mini Metro.
ADO 99 Became project LC10, then LM10 and finally Austin Maestro.