I thought the way TCR worked was to have a slight left/right bias on the wheels to keep them pressed up against side barriers on the track? No idea how power worked though; induction?
TCR had 3 rails sticking just proud of the track level. Outer 2 were channels 1 and 2, centre must be 0V. And the cars had 2 sprung brass pickups in middle and either L or R. Probably much the same as Scalectrix, but without the slot? No induction, just simple contacts. Unless they made a special version later?
TCR also had no control. Max power in to a corner and Newton’s laws win 😉 Eventually instead of trying to race for a win, which is impossible when the motor performance of 2 cars vary so much, the contest is to see how far one can eject the car from the track across the bedroom floor.
Used to have the Truck racing TCR set. With the trailers attached there was no way anything was going to stay on track.