I’m with you.
30 cats per car has always been my limit.
No more than ten for me..... I need to have room to stretch out, I can’t share my seat!
Believe me...if it were squirrels instead, your limit would be _one_....LOL!
Long ago, I had a girlfriend who had 13 cats, and had to move from one apartment to another. She loaded all 13 cats into her (small) car, using cardboard cat carriers and two cats per carrier (the matriarch female got her own).
I had foolishly volunteered to ride shotgun, in case mayhem broke out in the car while she was driving. No use having an accident, right?
You cannot, absolutely cannot, imagine the noise level of those 13 cats in a small car.
No, she's not still my girlfriend, thanks for not asking. :)
More than 30 cats in a car??? Impossible. Simply impossible.