Backup cameras and/or sensors
Backup cameras and sensors can be retrofitted onto any vehicle. Now that they come standard in all new vehicles (as of May 2018), prices have come down dramatically. Backup cameras can be purchased online or from a local auto shop. Every week in the U.S., at least 50 children, often toddlers, are backed over because they cannot be seen behind the vehicle, usually being driven by a parent or grandparent.