There are a couple of clubs that run 10th touring cars, Falkirk on Friday Nights, and they also run buggies on sundays,
www.falkirkrcc.co.uk. For touring cars and 12th scale, there are clubs, in Dundee and Dunfermline (I think they run at Lochgelly on Friday nights, and in the Lothian region there is a club, I think they run on alternate fridays at Bathgate, again touring cars.
East Kilbride just south of Glasgow run 10th Buggies on Wednesday nights, their website is
www.ekmodelcarclub.co.uk and there is a club in Ayrshire on the west coast, who run on Monday nights, touring cars.
I don't have links to all the clubs, but maybe checkout
www.scra.org for info on the Scottish National Touring Car Series. Also have a look on
www.rcracechat.com in the club sections.
Hope this helps.
Raymond