Rather than going for the cheaper option, miata or the like, I would attempt this only due the fact of how different the car would sit and feel on the road and track, the unique appeal also has some allure to it as well
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"Ah! What music! They could have never imagined, those pioneers who invented the automobile, that it would posses us like this, our imaginations, our dreams. Men love women, but even more than that, men love CARS!"-Lord Hesketh