Since the 2008 collapse, sales of light vehicles have been the standout for the U.S. economy. Against a backdrop of sluggish growth in wages and retail, sales of autos and light trucks have surged to a 15-year record this year.

However, not all auto-related stocks are created equal. And investors who aren't selective may soon find themselves in the red.

That's because there are two critical roadblocks approaching that could derail the industry's terrific bull run. But despite the coming headwinds, there are two auto stocks that I like going into next year.

Dual Roadblocks Coming For The Auto Industry
Many believe that sales will continue to soar, pointing to the fact that the average vehicle on the road is 11.5 years old -- a record. But what is not as frequently mentioned is that the average age is creeping higher largely as a result of vehicle quality. Cars are holding up better, and new car buyers are holding onto their vehicle for an average of 77.8 months before selling them, an increase of 26 months since 2006