That is a different scenario. I don't think you can do much with a dead rabbit.
Nearly all cats these days are chipped, indeed it will be law pretty soon that they have to be chipped.
Someone will be missing a much loved pet.
As said by the other posters of course you should stop and see of you can help the poor animal, and take it to a vet if it is still alive.
The best advice is to not drive so fast in the first place that you don't run over innocent animals.
