This odd period style accessory is a "four-seater" conversion introduced in 1957 by Scottish MG Distributors John Gibson & Sons Ltd. of Edinburgh. They made it for an local farmer, and the car's registration number was RSF 456. The spare tire goes on the boot lid. The passengers' feet go through an enlarged hole in the rear bulkhead panel. If you're going to put two people in the boot of the MGA, they would surely neeed to be very friendly (or very small). Could be a wild ride though.




A letter by 'John Gibson & Sons Ltd.' explaining the dicky-seat conversion (click for larger images).


Addendum October 15, 2026:
Here's another one nthat popped up on a car for sale in mid October, 2026, this time with a Coupe.
For as long as the link may last, find the original sale ad here:
https://www.autotrader.co.uk/car-details/202607053902842

This may not be a complete Dickey seat, perhaps only the reverse hinged boot lid with a luggage rack.