Rolling road, mapping. east anglia?

[newberry]

Does any one know of any good garages with these facilities in or around east anglia. The cerb just hasn't felt right lately and was going to have it on a rolling road to have a look at fueling ect.

[Scrooloose]

I know of one, wouldn't let them have my car again though....

[Brummmie]

There is Dave Walker in Watton, but i think he only does Emerald as that is where they are made. Good excuse to upgrade!