Cox gas powered model car

I've found the car only on ebay.  People are bidding but to far out to gauge price.  $15-$75 on various models.
This one is the 1960 Buick reviera.

The one I found is in box, plastic window slashed, gas/oil stains. 
Has manual (stained), unopened accessory kit, tools and original eye droppers to add gas.  All things no other seller has.....

Car runs but a little beat up.


I was going to ask $150 and see how it goes.

Anyone ever come across one of these?