I never had a Total Control Racing set, but I knew someone who did. Supposed to be an improvement on Scalextric, TCR allowed drivers to switch lanes by flipping a switch on their controller. No explanation is given on the wikipedia page on how they did this, but I think only one rear wheel was being driven at a time, forcing the car over to the opposite wall. TCR disappeared quite quickly, compared to good old Scalextric, which seems to have been around for ever.
Every kid should have their own battery powered, joystick controlled mini Alvis Stalwart.