The crash happened early Sunday on Atlantic Avenue in the Bedford-Stuyvesant area. Two passengers died at the crash site, 25-year-old Naquana Kilpatrick and 17-year-old Gilberto Howard.
The 19-year-old man who was driving is hospitalized in critical condition.
A third female passenger is in stable condition. They were not identified.
It's not clear why the car spun out of control.
It slammed into a stanchion under an elevated train track at Atlantic and Buffalo avenues around 12:30 a.m.
Police say the subway system wasn't affected.