I thought the Vegas Trickle Murdered was his Nephew.
I do remember watching that on AMW
I remember him on the 'Cup' curcuit. Oldest Rookie Of the Year!!
I believe the Movie was a Fictionalization of Tim Richmond.
Or that Cole was Loosely based on Tim.
You are correct, Chris Trickle was Dick's nephew. A little trivia about Chris; after his murder (which is still unsolved BTW) he was replaced in the Southwest Tour late model he had been driving by Kurt Busch who then went on to win the championship in that division. And the rest is history. Who know what would've happened to either of them if things had been different.
And the Tom Cruse character in Days of Thunder was loosely, VERY loosely based on Tim Richmond.