Vehicles age a lot like humans. In both cases you rarely notice the process because it happens slowly, but get away from a car (or person) for a good chunk of time and when you come back some additional chassis looseness (in both cases) is quickly noticed. I was in the unique position of driving the primary West Coast Ford GT PR car on several occasions. The last time I drove it the odometer read somewhere north of 23,000 miles, all of them accumulated at the hands of automotive journalists and Ford employees...
Now the long-term GT has 9,000 miles on it, and I think it feels "good as new" - but without a back-to-back drive of a brand new one, over the same exact road, I'll never know. And that's probably never going to happen, so maybe ignorance really is bliss.
Karl Brauer, Editor in Chief, Edmunds.com @ 9,068 miles.

kratas101 says:
08:35 AM, 07/ 2/07
For the majority of us, driving anything remotely like a Ford GT is bliss already