I test drove one at the Mazda Rev-It-Up event. After I shoe horned myself into the seat, it was an okay car. Felt slower than a Spec Miata I rode in a while ago.

For the price I'd rather do as suggested above and buy a used Miata then look into a turbo kit. Heck, even some n/a bolt on's would make it out perform the MS Miata.

Plus if the MS Miata is anything like the MS Protege...I'd stay far, far away from that vehicle. The performance and long term reliability of the MS Protege is questionable at best.