Concepts and prototypes : Triplex 10-20 Glassback

Carole Nash Classic Insurance Specialists

This car is an AROnline favourite, and this one still exists at the British Motor Heritage Centre at Gaydon, Warwickshire.



Original 1978 Motor Show handout.
Original 1978 Motor Show handout.
Keith Adams

Keith Adams

Editor and creator AROnline at AROnline
Created www.austin-rover.co.uk in 2001 and built it up to become the world's foremost reference source for all things BMC, Leyland and Rover Group, before renaming it AROnline in 2007.

Is the Editor of the Parkers website and price guide, formerly editor of Classic Car Weekly, and launch editor/creator of Modern Classics magazine. Has contributed to various motoring titles including Octane, Practical Classics, Evo, Honest John, CAR magazine, Autocar, Pistonheads, Diesel Car, Practical Performance Car, Performance French Car, Car Mechanics, Jaguar World Monthly, MG Enthusiast, Modern MINI, Practical Classics, Fifth Gear Website, Radio 4, and the the Motoring Independent...

Likes 'conditionally challenged' motors and taking them on unfeasible adventures all across Europe.
Keith Adams

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5 Comments

  1. Have seen this many times in Gaydon, and i still think that with a little tweaking here and there it could still be a relevant car today.

  2. Quite cool looking, the front end looks quite sporty too.

    I love the fact that it is described as the “Austin Morris Princess”, what a complete shambles BL made of their badging around this time!

  3. A pity the Princess never received a similar front-end treatment to the Triplex 10-20 Glassback from the outset (along with a hatchback and other bodystyles, more potent engines, etc.) as it looks quite appealing compared to the original.

  4. It’s bold & imaginative (the ‘chevron’ rear indicator design for example. Agree with JonBoy, it needs a little tidying-up here & there, but having seen it at B.M.I.H.T., Gaydon in the late-nineties, I’m pleased to encounter it again in the new Collections Centre at the re-named British Motor Museum.

  5. Can’t be certain but I reckon this is used in the intro sequence for “The Americans” TV show in some period footage from the car show.

    Princess posing as a Russian? Maybe it was the original Agent Triplex?

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