Fixing autos to display base

Good Advice my friend !

If you're seeking something that isn't permanent, how about museum wax, also known as "quake wax". There's also museum putty.

I have used clear silicone caulk.  Holds with any tire material.

My .  Try drilling holes in the bottom of the tires for a small piece of stiff wire.  Glue to the tire with CA.  Then, mark the spots where the wire touches the base and drill matching holes.  Glue the wire in place with CA.  That should do the job.

Hope this helps.

Jim