Google is your friend
@Holdenhsvgtsr
Heres just a short "list" from what I can remember, not even doing any digging-
BMW; obviously the V8, the width of the car (over 2000mm) is too much of a gap between the road car's width etc.
Ferrari; speaking on width, iirc, it was the first car to go beyond the 2000mm width and required a waiver. Corvette noted it in 2012 and the rules changed that season so everyone ran 2000mm+. It also had a waiver to run an earlier spec (year) rear wing this season (and) the height was greater than normally allowed (roof height).
Viper; you already know "28 of the 40" waivers, so no need for my explanation
Vette; already explained before about the non-supercharged 5.5L engine not in the street Z06.
Porsche; allowed to run a deeper front splitter and a rear wing that extends beyond the rear bodywork.
Aston Martin; previously was allowed to run -5mm ride height than allowed in the class, had a waiver for 5 extra Liter fuel tank size etc.
If you wanna know things, do your homework. Dont put words in soneone else's mouth expecting them to do it for you. And dont question someone's truth without knowing it yourself. I got the nickname "trust" for a reason. Because you can often go by my word.