The only reason why I compared RSR fastest time with real life is to prove that F1 GTR underperforms,and that was the point of this thread.Have a look at Brands Hatch time it is way off the real life time.Plus harry was also using a modded track for comparision and it is valid to use a modded track as long as I don't use it ,isnt it?
If the keyboard info was very vital then I am sorry for not telling it at the start,I didn't think it to be that important because I didn't had much problems with it in any other sims like rfactor,SHIFT,etc.
Like you said I do understand that F1 GTR is hard to drive at limits but the problem is that it doesn't create its real life downforce and also doesn't have enough straight line speed plus the horsepower is 680bhp without restrictor and I don't expect my laptimes to be in pace with realtime laptimes.Regarding F1 GTR being slower just because it doesn't have assist is rulled of as laptimes are slower in AC with assists on.
I have also pointed out to you that not everyone who plays assetto corsa uses the RSR timing app, it, yet again, is a user created mod. Not everyone will use it. This means that the fastest drivers in Assetto may not have even posted a time to it, and that could be a majority or minority. I can only speculate on that aspect. Fact of the matter is, you are only able to access lap times from a select group who have CHOSEN to use that particular app. There could be other drivers who are faster than those who have times posted to RSR.
As for using a keyboard, of course that is needed information. You have ultimately started this entire thread off because you couldn't get the F1GTR around a track faster than the 12c or P1. And only then checked out what other people have done with those cars on the tracks in question, as well has looking to see what those particular cars have done in the real world. Other people in this thread have been able to get the F1GTR around faster than those cars, track dependent and driver skill taken into account. Those people I assume are using a wheel, if not a decent control pad at the very least. I am not saying you can not have a good time in Assetto with a keyboard, hell I used to play racing games on a keyboard once upon a time. As I started my gaming life on an old Amstrad CPC 464. And again this will sound elitist, but a wheel or 360 controller is just better in most racing games, especially sims, fact.
As for using driver aids and been slower, that will only be the case if the person in question using them isnt very good or are using something like a keyboard where the finer control of inputs is non-existent. This is something that has been proven time and again in various racing games with regards to ABS/TCS/STM, and they will not slow you down if you are able to modulate your inputs precisely. If ABS/TCS/STM are flashing up constantly, it means they will be slowing you down as you are not braking as efficiently, or you are mashing the throttle too hard at the corner exit, or are just plain taking too much speed through the corners. I have done that test myself with tons of racing games, including Assetto Corsa, Forza, and even with the GT series of games. Not once did they slow me down, in fact in some cases I was faster with them turned on. As I was pushing them harder because I had a safety net there if I made a mistake
And just one more thing, NFS Shift is in no way a sim, especially shift 2. It was the most arcade sim I have ever played.
I do agree with you that modded track may not be accurate but I have said many times it may give a good idea which car may be faster if they were available provided track maps are same.
If you are just comparing to in game times only, then a comparison can be made, just. But only if those times are from the exact same person. Even then that does not mean what you are seeing is a true indication on the performance of the cars in the game when driven by that particular person. I have touched upon this before, but each and everyone of us have limits, and if we have issues driving a particular car, such as the F1GTR, then we will end up babying it around the track for the sake of a clean lap. Which would ultimately mean we could be slower in that car compared to the 12C-GT3 or P1, which are much easier to push hard before they bite back, especially with the 12c-gt3. That thing can be pushed so hard before it will attempt to kill your virtual driver.