When I was looking for a new car in the summer I had a quick squint at one of the Arnold Clark garages in inverness (no idea which one) and received very little in the way of service from a salesman who told me he'd do me a good price compared to the £5,000 quoted in the window. After he'd spent some time speaking to his bosses I'd get it at a steal of only £5,300! His words were that "free road tax was a thing of the past" so adding £300 was totally justifiable.
I went to dicksons instead and their after-care service has been pretty outstanding, although as others have said they were waiting for me to make the move with regards to getting any problems sorted. Come mot and service time I had them change my batteries in the key fobs which had been dodgy since I'd gotten the car at no cost, and they also uncovered a snapped rear coil while mot'ing. Fixed in an hour, covered under warranty and they even fixed my knackered radio. Surprisingly nice people at dicksons.