I was strictly scalextric and had completely forgotten about tcr , just googled it out of curiosity as I vaguely recalled it’s ability to change lane , I also remember great big version of scalextric at butlins somewhere early 80’sAs a child I always wanted a Scalextric (or TCR) but it wasn't a goer. I waited till the day my firstborn had developed sufficient fine motor skills to press shit and went out and bought shitloads of the stuff :-)