Thanks for all of your replies.
BigAl - after many years of crawling around, I will leave the character building to someone younger! I want convenience.
We have similar situation as racer12306 - lots of different vehicles to maintain, so I'm not worried about profiting from the lift, just making life easier.
You are right - I would simply use a hammer drill on the slab to install the embedded bolts. That was one reason that I installed a reinforced 6" slab, plus it is a minimum of 4000 psi concrete.
So far, I can get (shipping included) a Bend-Pak MX-10C (10K lbs) for $2200, a Worth 9K lbs for $2600, or an Eagle 9K lbs for $2500. There are also some on Ebay but I wanted to find out country of mfg on those. All are asymmetric lifts.
At this point I like the construction/features/price of the Bend-Pak, but open to comments.
Thank you for your help.
PS - I will confess to liking to watch Knight Rider ..... it was always SO clear who was going to be the hero on each show!