[Dimis]

My fear is that if this does become an option, which on the face of it sounds reasonable, that the beauraucrats will eventually ensure the cost of it becomes prohibitve to most all in the guise of ADRs and safety. Much the same as ICVs.

Case in point:
There is NO reason a cobra replica should cost as much as it does.
Plastic body, cheap 2nd hand driveline, simple chassis and parts. NO overheads, advertising and R&D when compared to AUDI, BMW, Toyota etc... A big part of the expense is simple compliance.
Ie. Indicator Lens too high or too low or too yellow or too etc...