My father George Schumaker was in the advanced studio working on Mustang in 1963. He is quoted in the Holls book. Anyway, his sketches were the ones leading to the fastback. These are the only two that survive years of abuse. I donated them to the Petersen years back. Funny to hear Phil Payne say no one in the studio liked the fastback. Guess they didn’t choose his sketches. Phil can be such a Payne… old joke. Actually my dad did say the roof got too high in order to get the fastback look while holding head points in the rear.
And here is a pic of a cast of the pony sculpture used for the grille badge etc. It was done by a sculptor named Charles Keresztes. My dad brought this casting home from the studio in the 70’s. Dug it out of the trash. We treated it like a toy until one day I realized it mattered and saved it. I just donated it to the new Mustang Museum opening in North Carolina.
We here in Honda R&D enjoy your site. A lot of ex-Detroiter studio guys here.
Regards, Eric Schumaker
I did not have a color printer, but printed it anyway and look what happened.
In early 1968 Jerry Hireshberg’s Advanced Buick Studio started the full size clay model of the ’71 Buick Boattail Riviera and by late April, 1968 the finished silver and black Di-Noc and chrome foil trim model was ready in the studio for a Buick management review to evaluate their concept for the upcoming ’71 Riviera. During the process of the completion Hirshberg’s design team consisted of Lenny Casillo, Jerry Palmer, Tom Hale and Joan Klatil. The clay modeling team consisted of Frank Hughes, Frank Funk, Doug Cross, Bruce Brooks, Ben Vitale and Joe Henelt. The engineering team consisted of Tom Krauzowicz and Mike Fylan. After the April review GM Corporate management changed the design direction to have the model done to a B-Body dimension rather than the A/E- Body we started with. With that new direction there was a change with some of the studio team members to continue with the new B-Body armature and the design theme of this clay model turned out to look remarkably similar to the ’71 production car done in Buick Studio but not to the complete satisfaction of Bill Mitchell. 
