I found Malton to be as bad as the rest. Brought my Z4 in to have warrenty issues (rattles) fixed that weren't properly fixed by other dealers.
I had to drive there from Leeds to show them the issues, then book it in two weeks in advance, leave it three days - because they "didn't get round to it" in the one day they had actually allocated, pay £45 (£15 a day) plus petrol for the privilege of using their 3-cylinder Fiat courtesy car (that was seriously crapped up inside and out) to get home and then back.
My car wasn't cleaned when I got it back, but it did have a bigger rattle that when I left it with them. When I pointed this out (and demonstrated how what they had done had made it worse), I was told that all I needed to do was buy a certain product and apply it to the affected area. The BS was obvious to both myself and the dealer.
I would have paid to not have them waste my time like this.
I only went there because of the one or two good reports I saw on this site. I wish I'd never seen these reports on this site.
Dave