Speaking of group 1 cars, Nissan GT-R LM Nismo was amazingly slow car. And I also wonder why did they even bother making that terrible Audi VGT which was just slow compared to R18 '16.
GT-R Nismo is bad because the real car is hopeless as well. Nothing PD can do about that. They tried to exploit a loophole in the aero regs so it can have a high top speed for the Mulsanne straight, but they couldn't get the hybrid system ready in time for Le Mans, so it was missing 50% of its planned power. Without the hybrid 4WD, it's just a 500 horsepower FF and it was so slow in the corners that despite having decent top speed, it was almost as slow as the LMP2 cars
Also Epson Honda Gr. 2 car has been almost useless. Over all, group 2 has three new and competitive cars and three old and slow cars these days.
I think the Epson Honda is terrible in real life as well due to the ballast required for MR cars.
The old Gr.2 used to be good at high speed tracks like Fuji and Spa. But in the last update that made slipstream weaker, it became useless overnight because all PD did was lower air density, so the extra drag of the newer Gr.2 cars aren't such a disadvantage on the straights anymore.
Yes, and there's not much that caan be done to Epson NSX because adding more power would make it even more difficult to drive.
I think that Nismo became slower mostly because it lost it's power advantage and now it has same max bhp level as Motul but it's 80 kg heavier.