Hoist vs stacker

Buy a 4 post and get rolling jacks to lift the wheels off the runways . 2 posts are better for maintenance but 4posts allow you to store another car. 4 posts require less ceiling height and concrete thickness . A 2 post requires 4-6” of good concrete or you will need to cut and repour 4’x4’ pads where the columns go. Some 4 posts have trick adapters to actually move (relocate) the entire lift in the shop.
I installed and srviced lifts for a while .