Corvette gained the V8 the same year the T-Bird debuted tho - they competed V8 to V8.
Had it not been for the T Bird, and the creation of the SBC, the Corvette might have only been a 3 year run. 1953 300 units, 1954 3740 units, 1955 700 units (The year T Bird debuted) 1955 T Bird 16,000+.
It is pretty obvious that GM had Ideas back then, just not a follow thru connection to the Customer's Voice. Or was it an Unbridled wad of Cash, without Bean Counter's objections? Or Foresight that just missed by a little?
Either way, the Vette evolved as did the T Bird. The Vette started as a Roadster, turning into a Sports Car, then to an Entry Level Sports/Super Car. T Bird started as a Personal Luxury Convertible and turned into a Personal Family Luxury, then back to a Retro Personal Luxury, when the Market just wasn't there.
Ford already has a Super Car in the GT. The market isn't huge, but it doesn't have to be, being they are hand built and out sourced. Much like Vette, they are somewhat Hand Built and Outsourced within a GM owned Plant.
As far as "Retro Rust" Lets talk Pony Cars, the Next Big Revolutionary New Market in Automotive World. Or how about Mini Vans? Maybe we can talk World Cars like the Taurus, even the K Car?
Who Lead the way? Who had the idea pitched to them, only to throw it and them out? So much an "Arm Chair CEO" could have done!