Vertically on the back wall would be very cool, but I've got a few shelves that I'm going to be taking down and replacing with racking for storage.
Although now you've said that, I've got big wooden 50:50 doors rather than a metal vertically opening door, so there might be an option to hang them vertically on the garage door that I haven't considered. Thanks for mentioning that otherwise I wouldn't have thought about it!
How wide is the garage?
I have 5 or 6 bikes hung up vertically on the side wall towards the back of my garage, which fit next to my boxster. They are far enough back that I can get out ok and high enough that the bars etc are above the back of the car.
Vertically on the back wall would be very cool, but I've got a few shelves that I'm going to be taking down and replacing with racking for storage.
Although now you've said that, I've got big wooden 50:50 doors rather than a metal vertically opening door, so there might be an option to hang them vertically on the garage door that I haven't considered. Thanks for mentioning that otherwise I wouldn't have thought about it!