The driver, an 18-year-old girl from Vacaville, was traveling east at high speed on Vaca Valley Road when her Volkswagen Jetta went off the road just before 8:40 p.m. near the intersection Pleasants Valley Road in unincorporated Solano County, CHP Officer Ralph Caggiano said.
The car was carrying six people, just one of whom was wearing a seatbelt, and the driver died in the crash, Caggiano said. The five passengers sustained injuries ranging from moderate to life threatening. One 17-year-old boy injured his right femur.
Caggiano said both the driver and front passenger were airlifted to the trauma center at John Muir Medical Center in Walnut Creek, where the passenger was treated for major injuries.
The other passengers were taken to the Queen of the Valley Medical Center in Napa, Caggiano said.