He was unsure when the crash happened or how long they had been there.
Mr McKenna said the doors of the vehicle were removed to free the driver, who was conscious and appeared lucid.
The roadway was cordoned throughout the morning and a serious crash unit investigation has been launched into the fatality. Police are investigating whether speed or alchol was a factor.
Constable Raewyn Joblin, Masterton Police Maori liaison officer and Wairarapa kaumatua Mike Kawana performed a karakia, or prayer, before the body of the teenager was taken from the site by hearse about 10am.
ends