Rather like humans have finger prints, cars have VIN plates. These Vehicle Identification Numbers should be unique to every car. The first thing to know about this number is that it’s actually not a number at all. It’s a seemingly random collection of digits and capital letters. But as we’ll see, these characters aren’t random at all. And the VIN is actually the most important means we have of registering the true identity of a car. Here’s everything you need to know about your car’s finger print.