This document provides guidance on how to safely purchase a used vehicle from a private seller by avoiding scam ads and properly vetting the vehicle. It outlines (1) types of ads that could be suspicious and reasons to be skeptical, (2) important questions to ask the seller to determine the vehicle's history and mechanical condition, and (3) tips for a test drive and inspection to identify potential issues before purchasing. The goal is to educate consumers on deciphering ads, gathering critical information, utilizing vehicle history resources, and performing proper due diligence to avoid being misled or purchasing a problematic vehicle.