I dunno wtf is up with my game but for some reason the level unlocks for the cars I get cannot be used for specific events and its annoying. ie The Ford Mustang Terlinga can't be used for any of the Muscle events even though it is a muscle car. The game classifies it as a Muscle GTX (WTF?). The same goes for the 911 GT3 Team Falken instead of being classified as a GT3 car its GTX??!
Well the Falken tire car is actually a GT2 class race car. The GT3 is sort of like a trim level on the 911, like how there's the Corvette and Corvette Z06. Porsche runs their 911 GT3 cars in GT2 since I don't think the GT2 is allowed.
Hmm interesting I didn't know that guess I'll have to fork out 300k for one of them. Would depend which of the GT3 class cars are the best but I'm thinking its still Porsche. I do have the Legends DLC and I think the 911 they gave me will work (costs $0 too lol).
The Muscle races I'm pretty sure are for Muscle Road or similar, so the Muscle GTX Shelby isn't eligible.
As for the 911 GT3-RSR, yeah, it's a GT2 car. Porsche are good at confusing names, like the new GT3R being a GT3 car, the previous GT3R being a GT2 car, the GT3RS being a GT2 car, the GT2 also being a GT2 car, the GT2 Evo being a GT1 car, the GT1 being another GT1 car, and also a GTS car. On top of that, the GT3, GT3RS, GT2 and GT1 are all the names of roadcars too!
All of the GT3 cars in Shift 2 should be pretty evenly matched, it's just a matter of taste which you pick. I personally prefer the Alpina, despite it being a bit ugly.