They were made in a limited quantity only I forgot how many they were going to build but it wasn't like 1000's of them true if you had the funds to buy one you could.
Production numbers for Hellcat powered Challengers, Chargers, and Jeeps is 56,706 to date. No way does this qualify for "not production vehicle to the public". They are still in production till 2023, so you can go order yours today :)