Instead of a human inspecting for damage when you return a vehicle, this new system scans the car in an instant. It takes thousands of pictures from all angles when you take the car, including the body, glass, tires, and undercarriage, and does the same when you get back, and compares the pictures to see if anything is different. If it detects any damage, it creates a report and sends the details to you, sometimes within minutes of your dropoff.
So long as they do a scan before I rent the car and not just after, I think this is a huge improvement over what's done currently. I rented a car for the first time in awhile recently, and the onus was on me to find all the problems with the car. As I spent more time with the car, I saw more and more existing damage that I missed on initial inspection and got super anxious about it (especially because they gave me a Mercedes when I reserved an economy car ... and I only have liability insurance).