I had hoped to see the return of some lost track variants on months where they couldn't bring us a whole new track. Particularly the Homestead road course that uses the banking for the final corner as that version is far better for overtaking/drafting, and Watkins Glen without the bus stop for some vintage GTO/GTP racing. Suzuka West as well, as East is just the boring half of the track.
The stock tune for the LMDh Caddy is pretty weird if I remember right, the toe numbers in particular and it would be interesting to see how they arrived at those numbers for the default setup.
It seems you can be way heavier handed with the changes to it than you can be with other LMP cars, but even doing the wacky Forza turn stuff like max front/min rear aero, 1/40 on swaybars, 100 accel in the diff it still understeers pretty bad.
Maybe it makes sense because it's quite a bit heavier than most LMP cars, but to me it feels like a fast GT car more than an LMP car... Which is actually kinda nice in a way as it feels less knife-edge-y which I find is more comfortable (and therefore less mentally tiring) for doing longer races.
This is really annoying for those of us that don't use the driving line. Headlights were pretty bad in FM7 too, but it's kind of a bigger issue now that every track has a full day/night cycle.
Lots of the tracks have enough ambient lighting at night that you don't notice too much, but there are a few spots where it is really obvious, like Blanchimont at Spa. Even though they added the big floodlights in may places, the Nordschleife has two of the worst spots at the final left hander in Kesselchen and the entry of Mutkurve. For both, you can't see the turn-in point until is too late in faster cars, unless you are using the line or maybe the track limits things, but you shouldn't have to use those to not die in a race car that has brightass lights for going high speeds at night.