Frankly, for a new driver (I assume that's what you are, since you're talking about a first car) one of these cars is not a good choice. A more modern car will be more economical, more reliable, and, above all, safer. I'd get a Miata, as new as you can afford, but at least something with air bags and three-point seatbelts. It will be a lot of fun, and you can walk away from your mistakes. There's plenty of time to get into the British car thing as time goes on.
Not what you wanted to hear, I know, but what you need to hear.