Can I use two remote-controlled LEGO Tracked Racers 42065 simultaneously? I want to buy two sets of the LEGO Tracked Racer 42065 so that my children can play together. I can't tell if they would be able to use the racers simultaneously.

Are the IR receivers multi-channel? Can the sets be raced simultaneously?
Yes, LEGO's Power Function IR elements have 4 different channels you can switch between with an orange slider on the receivers and remotes, so you can run up to 4 at a time.