GSM narrowly missed being South Africas first sports car maker, beaten by the GRP Protea.

One body was made and sold in England to fund Bob's trip back to South Africa.

Cars had a glass fibre open two seat body fitted, but a hardtop was later available which had a reverse slanted rear window which later Fords also exhibited.

Since then Porsche Spyders and Lotus Fifteens have been used in the Nine Hours, rather squashing anyone with aspirations of further wins in a GSM Dart.

The rear was cleverly designed to stop one wheel spinning faster than the other under power through the use of different trailing arm setups on each side.

In the 1990s a visually similar mechanically different replica in the form of the Hayden Dart II was manufactured; these are still being made and have evolved to include independent rear suspension.