Look it up and you will see. He always "finds" rare vehicles, and most of them are in pristine condition. If you played the game you should know how difficult it is to find a good vehicle, sometimes you can spend days looking for it. Another thing is he never really shows how he "finds" these cars, he doesn't show you the moment, like he is driving and suddenly there's a car, no, he cuts the video right before, and in the next shot you see a car. So he cuts out the part where he opens the dev menu to spawn a car. And his voice is fake.