Car fax is nice, but I consider it PRETTY worthless. I brought a 2000 F150 and it looked perfect and car-fax didnt show a thing. My mechanic found out that 3 out of 4 doors had been replaced. Hood replaced. Leak in transmission. I drove it STRAIGHT back to the dealership and didn't look back.
Here's my advice to you.
-Test drive the car
-Negotiate a fair price
*BEFORE SIGNING THE PAPERS!!!*
Tell the seller/dealership that you wish to have a clause put in the contract.
Upon Buyer's Mechanic Approval.
If they want to make a sale bad enough they will do this. Drive the car back home and have your mechanic do the pre-inspection.
If you want the car so bad and the seller won't let you do this, then find a local mechanic before you drive 2 hours.