Here is a picture of the 4 post lift I installed.  Why I did not do this years ago, I don't know.  I certainly talked about it enough.  Of course if I had been smart enough to have done it, I might have been smart enough to build my shop larger than 30' x 40'....before steel went up three times in price!

I went with a four post lift as it takes up less space side to side leaving me room to put another car beside it, and, I feel safer parking another car under it.