interesting facts when they making the vintage series, it's really tough: 1. search all the racers for permission to use their name, if the racer is not alive, search for the family member 2. find the race crew member who owns the car, if no one own the car, look for who the last one owns it for copyrights 3. every single sponsor on the car, they have to get an agreement and lots of the company don't exist anymore. So have to find who owns the right for company that doesn't exist then 16-18 hours been put in on the phone for one car researching and track down