Fair enough, it's how you enjoy the game
I have replica garage solely for the purpose of making corrections on PD mistakes, I learned a lot of things, from car data, design, game physics and I could make use of my own real life experiences in the process while having fun driving.
It will be a waste for me if I'm stuck with inaccuracy while playing, a waste opportunity or potential to be more accurate in simulating the cars, giving whole new experience like the NSX build that was reviewed by
@LeGeNd-1 that he compared to AC NSX mod or Rfactor NSX, it's only 90% score for GT6, but he said it changed the car tremendously and whole new game compared to the stock GT6 NSX

The same goes to the Aventador SV that he also reviewed against AC, in which AC rendition is accurate in terms of power/weight ( comparing to real life test weight )
Another example, the NISMO GTR could pull 2.xxs 0-60 and 10s quartermile in real life ( stock ), if in the game ( GT6 ) it gets inaccurate power/weight and made the GTR only able to pull 3s and 11s on closest tire, that is minus for me, and that is just straight line performance, not handling or how the AWD works. In GT6, I'm disappointed with R32 GTR AWD/ATTESA characteristics, the R33 and R35 are the best, while R34 is the middle ground.