Inspect the car in daylight on level ground, and ask the seller for permission before opening panels or testing equipment. Compare the vehicle identification number on the car with the paperwork. Look for mismatched paint, uneven panel gaps, cracked glass, worn tires, and signs of moisture inside the cabin. These clues do not prove a problem by themselves, but they are useful prompts for questions.
With the engine off, check that seats, belts, windows, lights, locks, and climate controls work. Look under the hood for obvious leaks, damaged wiring, or neglected fluid reservoirs, but do not open a hot cooling system. Start the engine and listen for unusual noises. Warning lights should illuminate during the initial check and then behave as described in the owner’s manual.
Arrange a drive that includes low-speed turns, ordinary traffic, and a safe stretch at higher speed. Notice braking, steering, vibration, and transmission behavior. Before buying, review service records and have an independent qualified mechanic inspect the car. A professional inspection can identify concerns that a brief walk-around cannot, giving you a stronger basis to proceed, negotiate, or walk away.