Plymouth had a reputation as a well engineered car. I know they were early to have hydraulic brakes compared to Ford which stayed with mechanical brakes longer. What are some of the other engineering advances that Plymouth came up with first or incorporated earlier than their competitors in a similar price range and what models and years were did the innovation first appear? I've had in the back of my mind that it might be nice to compile a list and display it on a poster when I show my car.