Bikes on the SIDE of the vehicle? Never heard of such a thing!
We ride recumbents so "hanging" on a rack never works due to the shape of the bikes. We need to support the bikes on their
tires. Also there are 4 of us -- 2 adults, 1 human child and one huge canine child so blocking the rear doors would mean unloading at least one bike every time we stop -- which is frequent because the human child doesn't have patience for long trips, and if we have to stop we'd better potty the pooch at the same time!
Thanks for the suggestion!