I actually went to test drive the new Miata the other day and was hopeful that at 6'4" that I'd fit. Real close, just short on the head room.
The prior generations it wasn't even close so this one is better and would take either getting the stock seat lowered or put in a different seat.
Some might still call it a girly car but I wouldn't care. I imagine on a tight roadcourse that this car would tear up quite a few "faster" cars. Giant killer. I recall another car company once being known for it's giant killer cars.