My Honda Odyssey was the best bike carrier I ever had. With the rear seats folded I could put 3 bikes inside upright with ease, probably a fourth if needed. That minivan is now gone and I have a Tesla Model 3. With that car the only good option is a trailer hitch mounted rack. You can't use a roof rack because of the glass roof, although Tesla themselves sell a rack which can take a roof bike holder from any of the regular brands. That said, I've also read where the stress of the bikes has cracked the glass. Trailer hitch plus 1Up or some other hitch rack gets expensive fast. I have put my bike inside with one rear seat folded down. I haven't tried adding a second, maybe facing the other way. I don't have trunk mats yet so I'm being careful. I'm still on the fence about the hitch rack. I know we would throw two bikes into the minivan at the drop of a hat, but would we do it if it weren't so easy?