There are no general Class-based Leaderboards in Forza Motorsport 7.
Every Car Division has its own Leaderboard, however you can only view them by being in a car from that specific Division.
There is also a Non-Homologated Leaderboard where your best time in a car that does not fit into a Division lies. The PI cap for that is X/999. Only your best time is logged on this board, and it cannot be filtered by Class.
Yes, I mentioned all that in my first post in detail of what the bug is. To clarify I have this same issue in the B class hopper. I eventually gave up but I’m hoping this is either patched; in the meantime I’m hoping someone knows the work around?
I have this same issue on E class and A class for very specific cars, but if I switch to different E or A class cars I’m able to see the leaderboards properly.
I made you a video since you don’t understand what my issues is.
Your first leaderboard was Non-Homologated. Any car that does not fit into Homologation requirements for its Division goes on this board instead. The PI cap is X/999 and only your best time is logged.
Your second leaderboard was the Homologated leaderboard for the Sport GT Icons Division. The PI cap for that happens to be A/700, but you will notice that only cars from that Division appear on that leaderboard. You’ll get the same effect when you switch to a different Homologated car in a different Divsion, and only see that Division’s Leaderboard.
When you switched to your second NSX with a non-Homologated Tune you got the same leaderboard you showed the first time.
This is not a bug, this an intended feature and is different to how Leaderboards were sorted in previous games, where each Class/Track was given its own Rivals event and independent Leaderboards.
If you don’t trust my word on how Leaderboards are structured in Forza Motorsport 7, here’s an FAQ: