ToronadoThe NSX LM is a bit iffy, because it never actually existed as far as I know.
However, it is kind of hard to come up with real justification to exclude the R390 or its partner in crime the R33 GT-R LM because they are both, point of fact, road cars. You could argue spirit of the rules, perhaps, but I've honestly never seen an R390 be used in a room where it dominated; and most of the times I've seen the NSX-LM used it is in rooms with PP levels high enough that it gets its ass handed to it by R35 GT-Rs anyway.
But the Nissan is road legal, could drive on normal roads in real life and like you said, was built in real life.
I wasn't talking to the OP.
If you don't want supercars, lower the PP by the way.
I've seen them used frequently. I personally use the Cien in really high PP races as my car of choice mostly because I like how it sounds.People tend to not use the high downforce road cars in most street rooms out of courtesy. There's no reason the r390, or even the f1 should be excluded, yet people dont usually use them because they do posses a speed advantage. In fact both the r390 and lm are faster than most of the tuner cars at most pp.
ToronadoI've seen them used frequently. I personally use the Cien in really high PP races as my car of choice mostly because I like how it sounds.
Unless I'm just sheltered or something, I simply haven't seen what the OP is worried about in my experience, with them walking everything else in the rooms that they show up in (the R390 in particular tends to be a mid-pack runner for the most part); and most of the people who choose them just because they think they are being "clever" in getting around the room restrictions tend to be terrible with them anyways.
The R390 yes, the NSX, no. The R390 isn't really better than other supercars, looks like one and handles like one. The NSX is a prototype, don't even know if it exists in real life and I doubt it would be street legal.
They are road cars (like Amuse S2000 GT1 Turbo).