That Dodge is definitely not a NASCAR racer, unfortunately I do not remember anything about it. NASCAR was involved in Drag Racing and that may have been a drag car out of Owens garage. If you look closely into the garage door (past the chained NO ADMITTANCE sign) the car inside looks as it may have the NASCAR decal package on the front fender. The front wheel also sits properly in the wheel well.
[b] SHOTS OF THE #6 IN 1966
PIT LANE 1963
PACE CARS