This is a really nice looking car. It does look very similar to the car in the black and white photo you posted above, in particular the way the wheel openings have been reshaped to allow for the tyres.
Is there any information about how successful this car was in racing? Also, I see it has #15 on the door. #15 was a number Bud Moore always liked to use in Nascar and Trans-Am etc. So could this be the car Pauly (zombie289) was referring to above?