The idea of doing this for cars is good but I think the customer base for cars is too great for there to be a single award covering the whole of the UK so something like north west England, north east England, south Scotland, north Scotland and so on or if that’s too much north and south Eng, Scotland, Wales and NI then there would be always dealers within a reasonable travelling distance from a customer.
Having a dealer winning an award in south east England would be as useful as a chocolate tea pot for some one living in Northern Ireland.