I will probably cut the foam down a bit, so it's closer to the shelf size and easier to get past.
That is really cool. What is the capacity of your car float?
You can put 5 or 6 cars on each track, so 15-18 cars. I haven't actually loaded it up yet. The overall length of the carfloat is 38 inches.
UPDATE: I tried it last night. The float will hold 17 40-foot cars.