mileage may or may not be "great". if those miles are all "granny" miles a half a mile to the supermarket each day then i'd be leary. not to mention the car was probably never broken in properly and run through the full rpm band. do a little research on that before you dump the cash. i've known MANY people to jump on just the deal and come to find out later the motor is a POS due to improper break-in (granny driving) and all short quick-trip-driving with many stops. personally i'd take something with 50k highway miles over something with 18k city miles.
