I strongly concur that a two-car is better. It's true that if you only have one car and one golf car, then you may have a very little extra space in the garage. But, that extra space makes it a h*** of a lot easier to get in and out of whichever vehicle you've used!
I try not to use my extra space for storage, rather for personal comfort!
Whichever you decide on, look forward to the best time in your lives!
SWR
