May be hard to see from this photo, but I always carry two bikes on a hitch mounted bike rack on my tow vehicle. ... Steve
I carry a Linear recumbent in my Ford Windstar toad.
We carry 8 bikes (or more) on the back of the bus. It is a double decker unit with 4 locking fixtures on the top unit and a home made unit below that the rest of them are bungeed and strapped. It is carried via the 2 in. receiver.