I believe anyone can sell, given the tools, the chance and the motivation. As a budding racer you have the latter tow opportunities. Here is my modest offer of the tools. If you ever need more, call me. Advice is free.
Results come at a modest cost.
There is a simple point here. A successful racer isn't just measured by his on track performance, but also equally by his ability to please people. Prospects and sponsors alike. This book is designed to help you learn how to do that. It is merely a collection of ideas.