Out of all the 3 generations of the Miata (NA, NB and NC), the NA is my favourite as it is the Miata in it's purest form. My particular example has a curb weight of only 2080 lbs! I have absolutely no luxury options in my car at all and that's exactly the way I like it. Just a basic, well-balanced, light-weight front-engined, rear-wheel-drive roadster.
Can you believe 500lbs* separates the NA and the NB? Considering the chassis is essentially the same, they must have really nickel and dimed the weight up. A brace here, a glass window there, 16" wheels all the way around, and suddenly it weighs almost as much as a Civic.
*EDIT: actually the difference is more like 200-300 depending on trim.
The Elise is about 1975lbs. You're almost there!