Would love for my two to be like that.
I get the impression cats and buns are a lot like cats and greyhounds. Sometimes it works out beautifully and other times not. I've tried my two together a few times and it just isn't safe. Mig will ignore Memphis but Memphis just will not stop stalking then when too close Mig flips and chases. Even side by side whilst being handled Mig will be ok but Memphis will lick, lick, lick then out comes those teeth ( please note neither one has ever had the chance to hurt the other). Even the claws come out and he tries to claw Mig gently .... He always ended up with a paw full of loose hair.
I don't know if this is correct but I assume rabbits are a natural prey for cats. Even though Mig is as big as Memphis, little old Memphis seem to only think mmmmm dinner when around him. They have been out together a number of times with very strict supervision, one time Mig escaped and without a care in the world, Memphis was absolutly fine. I know that given the opportunity Memphis would kill Mig purely as his instincts are just so strong.