I will talk here about some fixes that could balance things.
Tyre Pressure Fix
This dyno configuration is the thing that is making the majority of cars OP, some cars with crap handling like Elegy or Mamba, are gaining a huge boost with the Tyre pressure to "-", making then turn a lot faster than it should, and the majority of the cars that is benefiting from this boost are cars that have tons of acceleration like Infernus, a fix to this would be making the tyre pressure to drift less strong on Tires Pro.
Transmission Acceleration Fix
This configuration is not making any difference, having your car stock or with -10 to acceleration doesn't change anything, the car accelerates the same way, you only lose top speed doing that, but putting the transmission to top speed does help, and also doesn't change acceleration.
As said before, the OPness of these cars are just because of the dyno tyre pressure setup, changing the values of the tyre pressure to drift it would already make these cars less OP, also Infernus and Cheetah are already heavily nerfed, they are almost useless without dyno setups, so no need to change anything on then, but mamba should have less acceleration in my opinion.
This car is having the same performance as Mamba with the tyre pressure thing, it should have a change too.
This car has the same suspension behavior as Monroe, it oversteers when goes over a bump, but doesn't lose traction like monroe does, this behavior makes it turn very fast, so fixing this suspension issue should make the car less op, and also with the tyre pressure fix.
Even not benefiting too much from dyno, this car has the same performance as old futo without dyno, it has way too much acceleration to it's class.
Performance way too much higher than other SUV, this thing is faster than some class D, needs a fix for sure.
If other cars gets nerfed this car will dominate again, it needs some adjust to not make it op over other cars again.
Acceleration and Handling buffs, it's pretty slow and handles very badly for a D class and for a FWD.
Acceleration buff, it handles well, it just doesn't have the acceleration to keep up to the rest of the class.
Literally a joke, it has nothing good, and is also very hard to get, needs a huge buff for sure.
Suspension oversteer fix.
Acceleration Buff, it's the saddest B class to drive at the moment.
Traction fix, it likes to lose traction and spin everywhere everytime, it's very annoying.
Other cars seens fine in my opinion, some of the other op cars like Primo should fix itself if the tyre pressure thing is changed.
That's what I think it should be changed, Appreciate the attention.