I often find myself swimmin' outside of the school - part of that creativeness that comes with being left-handed, perhaps? But, if you like the look, it may actually have some very practical advantages - tight parking places or when some $%^*&^ drives to the far end of the parking lot, just so he can park tightly next to the Z.
A true Lambo door swings up vertically up and down from the latch - has no (or very little) lateral lean when the door is open. The door is designed from the git go to open and close that way, but not the C4 door. (So, that makes the kit a "bit" more gimmicky - not far removed from the kind of thinking a ricer uses when considering a big showy "fart-can" muffler.)
Then, I'd be concerned about the quality of the kit, and "unintended consequences" resulting from some ill-fitting/poorly engineered latches or hinges, etc. Get lots of testimonials from those that have had it done. Then IF the process can be reversed w/o any residual holes or other maladies, go for it. Not my cuppa tea, but in some cars (Lambos for instance) it looks...different (but, as Z drivers, we're used to "different"!
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P.