This new tyre model even in the current form that needs some tweaking, means that a realistic driving style now works. I found the 2009 Impala B to be the most hateful thing imaginable, whose tyres were a work of fiction. To be fast you had to run a crazy loose setup, which is the same as the V8 Supercar come to think of it.
The new Impala B actually has tyres
You can feel what's going on with the car, you can tell when you're about to go too far. You can also get out of pitlane on an oval without spinning
I've driven it quite a lot at Road America. The Impala is not exactly a natural road-racer, as mentioned earlier it has the agility of a supertanker, but even so once get to know how it needs to be driven, it's very good!
Of course since the NTM drives completely differently, it takes some time to adjust to using it. No longer can you get away with a big slip angle and drifting all over the place. With the Impala, you need to brake early... earlier than that... no even earlier! Get it slowed down and into the apex and drive it out... but not too much throttle or you'll spin up both rears and unless you make the small corrections required immediately, it'll have you off.
I can still use trail braking, just enough to feel the car move on the rear tyres as it rotates, but not enough to start sliding, then power on to hold it there, right on the edge, so you can straighten the wheel and get more power on. That is the area that the aliens will be living all the time. I've done 2:12.7 at RAm but I've seen guys doing 2:10's, so it would appear that the gap between the aliens and normals has closed just a little. I'm only 3 seconds per lap off now rather than 4
I don't think we need to worry about them ruining the proper road cars. NASCAR tyres have peak grip at ambient temperature apparently, so your first lap will be your fastest, then as temps come up, grip falls of a little but the tyres get a little more forgiveness at the same time. The likes of the V8, DP, Radical and Dallara will have tyres that only deliver peak grip once up to temperature. I think it will improve all the cars, particularly the DP and V8, both of which are a complete fantasy at the moment.