The median age of passenger cars in operation remained at 9.2 years in 2007, tying a record high in 2006, according to the vehicle population report recently released by R. L. Polk & Co.
The median age for trucks increased 5.8 percent to 7.3 years in 2007. Though registrations were down, the median age for light trucks in 2007 increased by 4.4 percent to 7.1 years.










