I sold my 2009 Series 4 Aero in August 2015 with a little over 80,000 miles on it. In that 5.5 years it was off the road for 2 occasions totaling just over 18 months!
One time was in the first year of ownership needed warranty work to try and reduce the water ingress and sort electrics and the second was for a complete chassis replacement which kept it off the road for just over a year. Otherwise I would have sold it with around 110-120,000 miles on it.
On my 2 current Aero's I have slowed down a bit and probably average about 10-12,000 per year between them. My Tesla racks up the most miles, averaging 38,000 per year.
