The idea is nice but I feel like that there are other things the Developers and Community should focus on.
Well, the main reason of me voting No is because if you really think about the RP Conspect of the idea, you can just make-up the situation if you and the victim is willing to. You can pretend that you tied his hands and he can not get out of the car. I have had so many kidnapping roleplays and if you make them realistic enough and don't powerplay, the victim enjoys it as well.
On the money concept of delivering things, this is a No again. Just purely RP and no need for additional commands to lock the victim in your car, drop him off somewhere, kill him and earn some money. We already have these drop-off concepts, SR, PBR, VIP etc.