I remember we cycled from Aberdeenshire down through Angus to Perth one very warm July. We were in shirt sleeves the whole way and took three days on a rambling route, very enjoyable.
The roads were very quiet and still are up here but we met say 10 to 15 droptops, mainly MGF's and a good number of older Renault Megan Coupe Cabriolets. Not one of the cars had their tops down. We would have had the hood down on our car if we had been driving.