I commend you on your partyin' spirit, but you can't change the laws of physics...i.e. mass = namount of space. Nine people and a crotch sniffin' dog will NOT fit into this '57 Chevy Ragtop without everybody suffering severe physical, not mention, mental distress.

Besides, the dog would be very confused where to sniff the air without any windows to guide her and I don't even want to THINK about what that would be like when I'm wearing a bathing suit!

There IS NO choice, except to call Dude!

You DO know how to call Dude by now, don't you?
If not, then go back to where you found the chairs to get a clue.