What are you using the garage floor? Parking the car or working on the car? Or some of both?
I've had RaceDeck tiles in my garage for the past 6 years and they are holding up pretty well, except that jacking my car up is a PITA. I need to place wood under the jack and stands otherwise the plastic tiles will be damaged. Anything well north of 3000 pounds seems to be enough to do this, as my other car (Sky Redline) didn't do much, while my heavier MS6 will leave marks.
If I had it to do again I might go with a professional epoxy application as it would have been about the same price (roughly $1500 for a 400 sq/ft garage.) But I may be moving soon and I can take my floor with me, and just buy 5-10 new tiles to replaced the few damaged ones.
The tiles do look nice though
