Not since gas prices skyrocketed. That was then, this is now. The auto makers milked that cow a little too long.
From http://autos.msn.com/advice/article.aspx?contentid=4023925:
Trucks continued to dominate U.S. vehicle sales in 2006.
Another year of auto sales is complete, and while total sales dropped just 2.6 percent, the mix of cars and trucks has changed. Full-size pickups continue to be the most popular vehicles with U.S. buyers; however, truck sales are down 6.7 percent compared to sales in 2005.
Total sales show the Ford F-Series and Chevrolet Silverado as the top two sellers in the country, followed by the Dodge Ram in fourth, according to sales information published by Automotive News.