I have track from Scalextric Sport. I can't seem to get 2 cars running independently. I'm definitely a noob to the slot car world. No matter what track I put the car on, 1 controller controls them both. If I plug 2 controllers in, both need to be pressed before either car will run. The 2 cars basically run together. I have 2 crossovers in the track design so you stay in the same lane the whole race.