EVERYTHING is getting faster (quicker)...

I dunno WHAT you'd call it, officially. They're calling them "pure" and "factory" stock

https://www.youtube.com/watch?v=qpePZtFZZmY

https://www.youtube.com/watch?v=fr2ljFVf7WM

https://www.youtube.com/watch?v=q6eo7OgBcW8

https://www.youtube.com/watch?v=zzde1byFTt8

I don't have time right now to compare times and stuff and see how the results compare to what you'd expect from the real deal on new rubber, but I LOVE this stuff. These four are examples of the channels with the good stuff.

Let's just assume for a minute that it's real-- it's so cool when the 427 Corvette hits the track one time. I've never really been impressed by 'Vettes because I've never seen anyone in a 'Vette get on it. They've always seemed like old man cars. So it's awesome to see it mop up. Those and the Hemis

Factory appearing, stock tire. The different wording is probably just each track putting their .02 on classing and then video being recorded by people that didn't read the rules and don't know the exact wording or that it matters. 

Although i did see a couple cars that may have actually been stock! They were the slow ones.