I know, a possibility of no supports would be the reason, of it being sorta similar to a leopard, but it's worth a shot.
A cheetah Lion hybrid to me would look nice, I can see them having features of a cheetah, and lion.
I know, lions mate with more of leopards, tigers and it isn't really common, since we battle them in explore, so i would suggest, if this where to be a mutation, it would be extremely hard to gain, since lions and cheetahs, are never seen mating, or so, this is just a suggestion, but some name ideas for them, if they where to be
-Cheetion (cheet-ion)
-Cheon (che-on)
-Liottah (lio-ta-h)
~
I know, this isn't going to be supported, but worth the idea, I don't have any images to, think of how it would look, sadly though.