Some cars are lifted by the sporty models Golf GTI for example and RS2000 other cars are dragged down by their dull models which is what I believe has happened with the Dolomite, because of 1500's and the "old man image" the sprint is well forgotten despite holding all lap records against the cars mentioned IN THEIR DAY.
The late great Gerry Marshall saloon car ace gave up on Vauxhall Viva's to drive Sprints.
Ford had to use £3 litres to beat the 2 litre Sprint
