I never tried any dealerships in that area, handy to know for future reference though and I agree RS3 will have better residuals, are you in the West then since purchasing from DP previously?
With regards to the continuous screen I liked it, didn't appear stuck on top of the dash like Audi do, was responsive, easy to use and has great clarity.
RS definitely easier to use as a daily and as good as the M seats are I find the RS seats more comfortable, M3 was brutal in a straight line though.
Yes in Ayrshire. Have bought Audi (non RS) before from Ayr & Glasgow, knew people who worked with them at the time which helped.
I suppose the screens that are being added now will become the norm going forward, it's just getting used to that change.
The biggest issue i have with newer cars is that the quality of materials keep falling! I know some of the lower trim is getting worse, but the touch points like door handles/dash etc is criminal especially with the increase in prices.
Other thing is the RS3 is pretty small inside, M3 will have more space. But need to remember it is from category above model wise. 71k v 102k when specced to what i'd want.
Last point the dealer said to mean they look for 7k margin to forecourt price when bringing an RS3 trade in.