I don't think it should only be one bot recorded, there should be a few bots there with all different racing lines, and the best way to do this is to record a race on the server with around 7-8 ppl.
Yeah I tried using MTA map editor earlier, it won't work for me, wanted to make a flat surface infront of one of the TV's, also a stadium stand, where the crowds sit, and a few other things. It would look awesome but you gotta do a good job of it. Still trying to get MTA to work. If anyone else wants to try to make a lobby, go ahead.