ok tested it, got some stuff to say
GOOD:

1. The actual dampers are great, soft enough
2. Using v6 kunos tyres, very good. i'll have to see if they are grippy enough,
usually by comparing the car with the kunos e30 on semis, and see wich is faster
while drifting.
3. Car doesnt lift he back while accelerating(i know right? haha)

BAD:
1. Ride height its not, you should be able to go even lower than 75mm, without
softnening the springs to minimum.
2. your suspension geometry has something wrong, cause while drifting the front
just looses FFB, no matter how much i amplify it, i am right now at 200+ FFB in
the car, and it still looses grip in front
3. Rear camber cannot go under -1.00, it need to be able to go to +1.00
4. Front camber is ridiculously high on default setup, specially for a car with
that small steering lock.

Some things:

YOu are saying in the description its an RB26DETT, "engine also uses a parallel
twin-turbo system, using a pair of T28-type ceramic turbochargers" but you only
have one big turbo, so its basically just a RB26 with one turbo. Not a big deal
i just saw that discrepancy.

Make the car as good as possible with default setup, because 90% of people who
drift in AC are not smart enough to be able to adjust or even know about the
in car FFB settings or dont know they can lock the diff in the pits. (even if
yours is locked anyway in the ini files)

Overall the car is nais, the only deal breaker for me is the suspension on
the front wich goes soft when sliding. other than that i dont really care that
much, but most might.

UPDATE: i tried the default setup, and the front suspension feels good while
sliding, not like the lowered car, wich is weird, should do that. But both
setups have one big problem, the self centering work only when i turn the wheel
less than 90 degrees, after that the wheels just steer more into the corner.
Test that in a parking lot or something, turn the wheel max to one direction and
slowly accelerate, and the wheel should self center by whemselves, wich they
dont at all, only if i help and when the steering wheel get to 90 degrees, then
the wheels start centering, even with that huge caster.