Can’t help but think……a 4 dr E-body is an answer to a question that was never seriously asked.
I agree! Why would GM have ever wanted to make a 4 Door version of their Corvette? What was the purpose for “wasting time & money” on that concept car? Or the 4 Door Javelin? Or the 4 Door 1965 Mustang? Or the 4 Door 1967 Firebird? Wait till you see the Barracuda that Plymouth engineered (and built) before deciding on their 1970 production version!