Yes, it is safe to send someone your VIN (vehicle identification number). The VIN is a 17-digit code that uniquely identifies your vehicle. It is visible through the windshield on the driver's side of the dash, and it is also listed on your vehicle registration and insurance card. Your VIN can be used to track important information about your vehicle, such as its manufacturer, make and model, year of production, and country of origin. This information can be useful if you need to order replacement parts or register your vehicle in another country.