Many claim to make realistic packs, then every car shares the same geometry and the tires pull 1.5G with no slip dropoff. I've never seen Facebook or Discord drift packs with even good kinematics, so forget the tires being realistic. WDT(S) isn't particularly realistic or even well designed but it's not as terrible as most. He has been doing some funny things with slip and thermal curves that are difficult to justify although I admit that maybe they're more correct in some use-cases because AC (and all sims) is missing some functions having to do with pressure, camber, slip and load interactions and it's not like I have the data to definitely say what happens past 45deg slip or 50% slipratio.
A 'realistic pack' doesn't currently exist, although back in the day Matt's 1:1 pack was using alright enough kinematics and somewhat reasonable tire parameters.
