Upcoming improvement in the tire model (or physics engine if you have any information) ?

With "They" I meant Studio-397, while the real McLaren MP4/8 (not the MP4/13) had active suspension. They (S397) decided it's not worth the effort to implement active suspension for just one car, which might mean some deeper code changes of the physic engine to be fair. So in fact, they (S397) never implemented support of active suspension, and the MP4/8 from S397 was released with conventional suspension.