The Marvin Miller I know lives outside Brewster Ohio.
He is related by marriage and I used to see him at yearly family reunions, very nice guy.

He owned a body shop and did many restorations over the years and specialized in Mopars.
He owned a number of Wing and Hemi cars over the years and did own some type of factory lightweight Dodge Hemi drag car.

Sadly I heard he is not currently in the best of health.
I'm not sure if he sold the Hemi drag car or not.
If I get a chance I will try to ask.