If you're concerned that your car may have been tampered with, there are a few things you can look for. First, check to see if any of the exterior panels have been removed or damaged. This could be a sign that someone has been trying to access the interior of your car. Next, check to see if any of the interior components have been moved or disturbed. This could indicate that someone has been inside your car without your permission. Finally, check for any strange new devices attached to your car's electrical system. These could be signs of tampering as well. If you notice any of these signs, it's best to contact a qualified mechanic or auto specialist to inspect your car and determine if it has indeed been tampered with.