Was kinda thinking like previous post, if she's somewhat touchable, maybe some plan to get Bella in the car, I've heard of some people gaining enough trust with a stray to have them sit on they lap as they drove the car home.....Like I said, "I've heard"........If your sure Bella will just never go near/around a carrier, it may be time for plan B, humane trap, I don't use mine a whole bunch, but when I do use it, it's a sure thing everytime......This is when your now using food as a weapon, but it's for the cat's best interest in the long run.......