I get the whole "keep it pure" philosophy.
That's why I call my car a roadster, and when asked what it is, say it's based on the original 1960's Shelby Cobras.
I built it for the track so it has a stroker 427 with Webers, 17" wheels, bigger brakes, full width bar (so I can have a passenger or instructor) high back seats and a tilt front (so I can get to everything easily).
So it's nothing like a Cobra and I don't represent it as such. And that's ok with me.