I found very little info,it seems that some of the ford design team left for Packard right after the futura ,hoping to get more money?. I,ll keep searching though
That's about it really.
It's said to be by the same team that designed the Lincoln Futura, only this time working for Packard, which is why it's so similar!
The team at Lincoln was led by Bill Schmidt, who I don't think was one of those who left for Packard, so there seem to be no individual names mentioned in this sketch.
So this is solved; well done!
Below is the un-modified puzzle picture; can anyone read the name after of the front wheels? Parisienne? Futura?!