What late model accessories do you wish your old car had?

I was talking to Keith at Mopars In The Park last weekend about this topic as we both have early Valiants and new Challengers. Drive a good looking classic new car with all the goodies daily and the oldies for cruises etc. There were 150+ new Challengers at the show. This should stir the pot............................................
Peace, Love, and Rock & Roll.