Does anyone remember this slot car set(s)?

[downtowndeco]

When I was a kid (the mid 60's) my dad brought home a slot car set that i think was some sort of promo for a gas station. It was a cops & robbers set, and I seem to recall it had a lane changer thing so the robbers could escape. Does it ring a bell with anyone.

I also remember a figure 8 demo derby slot set. The cars had "crunched" fenders that blew off in a crash & then snapped back on. Anyone?

[BRS Hobbies]

[mattb]

Eldon made a Jalopy crash set that usually had a yellow and an orange 37 Style coupe that had the parts snap on and fly off when crashed.

Maybe the chase set was something called a DX Chase set? I only remember that name and not the set or particulars. A search may turn up a picture.