As far as I know all new models introduced after the Century model in 1988 were built with "century geo" i.e. Corsa Extra Max and Mx Leader too.
The last "new model" with "road race geo" was the Grand Prix.
The classic Corsa Extra and Corsa had from 1990 both geometries "to choose from".
The Strada (Cromor and Brain) was built exclusively in "road race geo" until 1996.