Yes, most of the single shots are prototypres or errors. The Corba WL was an interpretation thing. There was no WL in the released run. The other has a solid red interior and the production cars had pad printed tires. That yellow Fest Camaro is not captured well as it is a different yellow all together from the release. The first run usually has issues of pad placement, color problems or details. I took some pictures to show some off.
Yes you can come over and play, people touch them all the time. I leave them unguarded as last summer proved when some cars turned up missing as a joke. People thought I would flip but I figure hey, if I invite you to my house and you steal from me there are far greater issues at hand than die-cast. I run many of those one offs down the gravity racing track for giggles. I have fun with them when I can.
I'll take some more pictures this weekend.