I don't know much about deadpool other than he insane... that seems right up the alley of the idea of Carpool movies... So what if you mixed them and said something like Deadpool's mind (along with his regenerative abilities) has been infused into the body of a minivan. How can that not result in awesome?
Someone get on writing this! and making picures... you know you want to see a minivan with pockets and belts all over it!