This page will link to more  details on the ongoing modifications to the 240Z which is now being raced in the SCCA's E-Production class. The Z falls under a new category in EP called "Limited Prep". The theory is to restrict modifications in certain areas to keep various cars competitive with each other and also to limit the cost of development. It is not unheard of for a "Full Prep" production car to approach $100,000. The following links lead to pages that show some of the parts I have developed for the car. As with any race car, design and development is an ongoing thing, so I'll update with new things as they come up.