If it has a "salvage title" walk away, that means it was totaled by the insurance company after an accident and in some states you can not re-register/title even if it was worth having. Find out what types of accidents it had; hell it could have been a parking lot accident that was mostly cosmetic. Most people feel they have to claim everything on their insurance even when it is minor and most likely is little beyond deductible in cost to repair. Not all accidents are the death of the usability of a car. If in doubt I'd walk away.