Thank you. I feel that we have so much track we should use it, but I’m happy to buy new power supply, cars and controllers if needed. I’ve seen sets for around £100 but don’t know if they work with original track, and no sections of track with any kind of special fixing point. The new kits seems to come with a piece of track which I assume gets the power to the whole track. Does all track - whatever age - fit together? Your advice is gratefully received!