Wow, I've been racking up a lot of mileage lately. Yesterday I hit 50,000 miles on the Mustang. It's on 06 I bought in March of 06 so I'm well beyond 1000 a month.
For reference I hit 30,000 after 30 months.
So far so good with the car. Only major cost has been tires, but I expect to need new struts and shocks soon. No new modifications, all spare change is going to the Capri.