Some auto manufactures will make you pay a milage fee, I have seen from .15 - .45 cents per mile on your vehicle.

I recently had a lemon law buy back from Ford on my '03 F350. I did not get charged anything for milage, but did have to pay the difference between MSRP of my vehicle and the new one. The vehicle was exactly the same, but Ford had a base price increase between the time I bought my truck and the time I received the new truck.

They did reimburse me for add-on's though. I had a bed cover, tinted windows and bed liner and was given full value for these items as I had the original receipts for them.

Entire process took about a month to complete. Lots of legal paper work with titles etc...

2003 White Hummer H2