8500 miles in my M3W 6 weeks short of its 3rd anniversary. Its not a fair weather only car, I'll go out even if there is a chance it will get wet. I like Steves comment 'I will not under-use it simply for the benefit of the next owner' my sentiment.
In my 1930 Sunbeam in 27 years of driving I have averaged 860 miles a year. I'm longer up to doing 400 miles in the day in it.
Yesterday I parked next to a guy in a 1960 BMW Isetta. Last year he did 16 miles, to the MOT test & back.
Tim