GTR Evo doesn't feel loose and vague to me at all; some may not like all the effects (like engine vibration)... but I don't think there would be anyone that wouldn't like vibrating effects from braking. Or the wheel feeling completely loose when your car is airborne for a split second and then getting hard and stiff again as it touches ground. And in GTR Evo when the car loses control the wheel doesn't loosen up like in GT - quite the opposite, it gets harder and pushes to the opposite direction, which feels quite realistic to me.
But I think it's a matter of settings actually. Different settings make HUGE differences, trust me.. and there are like 10+ settings to mess with in the game.
As for the physics, I may be an idiot and just don't get it. In real life physics exist but the response of a car on the road depends on a billion factors, including luck. There is absolutely no chance that two passes of the same asphalt on the same car feel EXACTLY the same. Games can't simulate every single factor; or luck. They can simulate a feeling though. Opinions from anyone out there, besides being subjective, could be 'bought'. This more realistic than that, etc. The realism can only be proven by watching each game's engine source code I think. But even that doesn't mean a thing if the game doesn't FEEL right.
When playing iRacing I was constantly tip-toeing and holding my breath in every corner and the car kept losing control every once and a while. Being tough, doesn't mean it's physics- accurate... or FUN in any way. I didn't feel the rush in the turns, like I do when playing Race on or Evo. I mean these games changed my whole opinion about graphics in games. It's a lot of enjoyment even if a game doesn't have the GT looks.
...or maybe I have a different perception of senses than the rest of the world