Actually vfxart, there have been many scale plastic concept and prototype automobile models made over the years.
For Chrysler you have the;
MPC Charger III from about 1968. Later converted to the "Flying Dutchman" Funny Car.
MPC Alexander Brother's 1966 Dodge Deora.
AMT Plymouth Prowler (AMT's snap kit was of the prototype).
AMT Dodge Sidewinder.
Jo-Han Chrysler Turbine Car.
From GM;
MPC Astrovette I.
MPC Astro. Later converted to the "Scorpion" Funny Car.
MPC Makoshark.
AMT Pontiac Banshee.
AMT Olds Aerotech.
AMT Titan 90 COE had parts (in original issue) of show truck, complete with turbine engine.
From Ford;
IMC 1964 Mustang II.
IMC 1966 Mercury Cougar II.
This list is by no means complete. These are only the one's I can remember.
Who Knows What Evil Lurks in the Minds of Men... Chrysler Does!!!