Most southern homes don't have basements (limestone makes it crazy expensive to dig a basement here in Texas), so once the attic space is filled, the garage is usually the next to go. That leaves very little room for vehicles and as you can tell by my pict above BARELY enough room for two even when there IS room.
I managed to clean my garage out 2 weeks before taking delivery of my new T4RTE in Feb after leaving my previous ride out on the curb for over 12 years without a single dent from hail. Since taking delivery, we've already had two destructive hail storms hit my area this month, so the effort to get both vehicles in the garage was worth it.