I had a four post lift for awhile, mine was a Backyard Buddy, supposed to be the Cadillac of lifts. Well I couldn't get rid of that thing fast enough. In actually use it was useless almost, I didn't buy it for the storage but to use as a lift. It was miserable to say the least to use to work on my cars.

I replaced it with a two Post lift, and have been very happy with it. It is great for working on the cars, and I have used it many times with a car on it and to park another under it. Maybe you could rethink the four post idea altogether. Your needs could certainly be different than mine but of the two I will always choose the two post, and I will never be without a lift ever again.

Roland

PS Here is a picture, not a very good one mind you but it does show the lift in use.