Sports hards are the all weather tires most cars come with, hence why they are so good in the wet.
Sports mediums are the Toyo Proxy T1 or Yoko mid level tires.
SS is the PZero P1 cup tires and high end pilot sport cup or yokos.
The tire choice and physics are a bit busted as we all know because the 911 gt3 rs doesn't come on SH tires and the whole Maserati MC20 on SH for the time trial.
These are not the performance tires fitted to these cars.
Sure you can opt for the fast road all weather versions but these are cars that come on road going race/track day tires with the equivalent life span.
All the C level tires are period or budget level remould spec radial tires.
For some reason and it might be the lack of the sense of speed but tires are generally better in the real world than the GT ones.
But tires are hard to model even F1 doesn't get it right.
This is purely guesswork on my part but taking into account PD's track record and the tuning others have done to try to get some cars to behave more realistically (in past games for example)
I beleive PD does know what they're doing. the physics guys tune all the cars with the correct tyres in mind then when another deve team puts the cars into the game , they put SH or worse tyres right? Putting SH tyres on a Porsche that requires SS.. isn't ideal But I think for the sake of optimisation and game design, #Racing car comes with Racing tyres as expected but #Road car comes with maximum of SH tyres, like in older games where you'd never get a car equipped with SS tyres from the dealership.
this could also just be due to the sheer volume of cars in GT7 it's easier for the game design team to just equip most with SH tyres rather than figure out which needs to come with SS tyres, but who knows. At least you can pay $4k and get the right tyres.. maybe that's the idea, pay to play
I can live with this answer if true.
Intuitively I still would've expected more progressiveness with how it loses and regains grip, as well as ease of maintaining the slide under power (without the car losing momentum and regaining grip again abruptly).
I honestly believe the tyre model is still incomplete. Looking at the last big physics update it did change how MR and RR cars behaved, for the better, it appears there was a change in tyre model. Just wait for another change in 6-9 months, I'm sure a slightly better feel will come from those same tyres, it's way too arcady at present. Gt has never been great at dirt/snow but you're right on the money that it shouldn't feel so bizzare to drive.
Hell in GT Sport, I remember the track grip varying wildly depending on if you were driving on tsukuba or monza or Laguna SECA, each track in that game forced me to retune my car setup for that track. So Fixed track grip levels were a thing in GT Sport, wouldn't be surprised if that's also how they do in GT7, which all they'd need to do is change the grip/friction etc values for the snow tracks.
It is interesting to me how the game won't even let you use road tyres on snow tracks or snow tyres on roads.. maybe that's a deliberate boundary so people wouldn't find out the physics of doing that combination don't make too much sense, it's not going to give a realistic feeling. It's also interesting to note in GT7 not one Dirt/Snow track has mixed surfaces, there's no "asphalt section" on these tracks whereas IRL there's MANY tracks with mixed surfaces. Perhaps that's because again, the tyre model is incomplete and using the dirt/snow tyres on tarmac/asphalt would expose it. It is just easier for the devs to work when they know a snow tire will NEVER be used on anything but the appropriate surface. but if that's not the case then the devs have to spend a lot more time to get the tyre physics correct for all tires across all surface types rather than modelling the tyres based on the one or two surface types that particular tyre should appear to be realistic on, the use case. I wonder if anyone has found a GT7 secret menu and tried snow tyres on tarmac and vice versa, could be interesting to see what happens.
in GT4 i remember there was a track in GT4 that had both gravel and asphalt in the one "dirt" track, that has yet to be seen in GT7, I hope something like that comes in a future update, just for the realism.
