I am new to slot cars as an adult but have an old Ideal Dukes of Hazzard slotted car set from childhood and a newer Lifelike set. Is there any adapter track to put them together? I have seen some for AFX to Lifelike but not Ideal. Any help would be great.

Welcome to HT!
Ideal will not addapt to anything. In their infinite wisdom, This manufacture designed their track and cars to have a more narrow width for track-rails and pick-up shoes for their cars. You can run ideal cars on other track systems by customizing the shoes. (just solder on a bit from some old shoes to make them wider. Set your dukes car on a LL track piece and get an end-view(from the front) and you will see what I mean.