The garage space is a BIG concern...

Also remember how high it is (when rotated); with mine I can BARELY rotate it all the way around - it almost hits the garage door when open (it is a 7' door); in fact I was VERY conserned when I bought a new garrage door that I would not be able to rotate it so I spaced the track up 1/2" - good thing I did because it would not have fit otherwise...

I have a '67 barracuda 'vert on mine, and my garrage is 20' long it give me about 18" to walk by it with the way I have it mounted; I could have mounted it tighter, but I did not want to cut the factory bars in case I want to put a different car on it...