In 2006, retail sales of specialty automotive products reached $36.73 billion. Since 1996, the automotive-specialty-equipment industry has grown 104.7% over the course of 11 years. During that same time, the average annual increase in industry sales was 7.31%. During the same time period the average increase in new-vehicle sales averaged 1.07% per year. Obviously, although new-vehicle sales have a significant impact on industry sales, there are more factors at work.