I used VCT (Vinyl Color Tile - like you find in schools, hospitals, etc.). It looks real good and it's CHEAP - about $1/sq ft installed. You can resurface it and polish it almost endlessly.
Now for the CON - I have the ACR with the Cups. Cups get nice and hot. Hot Cups melt the nice wax on the VCT floor and "glue" themselves to the tile. I turned the front wheels and buckled 2 of the tiles. On normal street tires this is NOT an issue and they don't leave marks, etc.
Solution - I got small mats and situated them to where the tires sit on them. One GOOD benefit of the mats is when you park the car after being out in the rain the mats absorb all the water that drains off the tires and keep you from having huge puddles on the floor.
Not trying to hijack the thread just hope others don't learn about the Cups the way I did. I don't regret the VCT and would do it again even knowing the down side. Just know the "cons" going into it. Again the tire mats look cool and really keep you floor dry after a rain.
I added a couple photos - you can see I didn't get the mats for a few days and you can see the multiple marks from the Cups. The fromt mats on the ACR are angled as a result of a test. I turned the wheels while on the mats. The mats just turned and did not mark the floor. Those are $2.98 mats from Home Depot.