Motor vehicle crashes are the leading cause of death for U.S. teens, accounting for more than one in three deaths in this age group.

The risk of motor vehicle crashes is higher among 16-19-year-olds than among any other age group. In fact, per mile driven, teen drivers ages 16 to 19 are four times more likely than older drivers to crash.

Compared with other age groups, teens have the lowest rate of seat belt use.

In a national survey conducted in 2005, nearly three out of ten teens reported that, within the previous month, they had ridden with a driver who had been drinking alcohol.

In 2005, three out of four teen drivers killed in motor vehicle crashes after drinking and driving were not wearing a seat belt.

Source
http://www.cdc.gov/MotorVehicleSafety/Teen_Drivers/teendrivers_factsheet.html

Remember, it only takes 2 seconds to buckle up!