In the video below, Jim Ziegler, top car salesman teaches how to be successful selling cars. You need to have the mindset of a manager and not a salesman because every sale starts in the management.
You can become successful in the automotive industry if you develop good processes and philosophy. Study your industry like you are studying for a masters degree to have all the knowledge you can possibly have about the industry.
Related: How to become a car salesman and salary for the position