Neither of those my friend. (ref. SKiddell) The MG A and the Healey didn't have a single line running from the front to the back (in a single arc). They both got to the rear of the door and scooped upwards and down again (like a mini bat wing!) If I had to put any money on it then i'd say an MGB coupe with US spec body kit on. You know how they love those knock-offs and those bumpers were on the Chevy Stingray in the 60s (before they were banned for being dangerous). Failing that, it could be a Ferrari 365, 410 Superamerica or 500 Superfast. Anyway, cars are really cool.
I'm done,
SuperjakkoTM