My dealer gets a lot of executive cars and I found them to be in much better shape than other used cars and consequently fetch a higher price. There a some benefits to buying them because it is the first time the car has been titled so the warranty starts when you buy it. For $2k more, they'll certify the car so you get the CPO 100k mile warranty. If you select "previous destinations" on the NAV system you can see where the car is from and where it was driven - probably BMW HQ office in New Jersey. Yeah, I'm sure the break in period wasn't observed but I don't know anyone who drives bmws "gently". I had a good experience buying am executive X3, other than some rust on the wheels from salted roads in the northeast.