The only problem is because of the closure.
The grid is up and down a bit from the basket from, so you just need to be careful with the little ones this is not even the squeezing of the head, paws, etc. leads, if someone times really want to get out there again.
Furthermore there is the possibility that the cat paw slides down between the grid and the basket and with a little pressure results in a leverage effect. Result: Grid hanging out to basket open.
This happened to me yesterday on the way from the apartment to the car. Thank goodness I had a blanket over the cage, so that the little girl could not get out immediately and I seal the bag quickly.
So that means on the car ride not a moment.
After the cat has then laid relaxed and resigned to their fate, everything is fine.
But until this happens, you should hold the basket already under surveillance.
Even my cat is very small (10 weeks). Still, I think that the leverage effect to the grid even if the cat is somewhat larger still a problem will be.
For large cats, the basket will be too small. More suitable for small to medium sized cats.
Greeting
Shelly