Authorities say the 31-year-old rapper, whose real name is Lionel Pickens, was driving on Queens Boulevard around 4am when another car passed and shot at the Porsche Panamera 4 several times, striking both Chinx and his 27-year-old passenger.
Both Chinx and his passenger were taken to Jamaica Hospital where the rapper later died.
The unidentified passenger was last reported in critical condition, after being hit twice in the back of the head.
After the shooting, the gunman sped off from the scene and police have not yet made any arrests or revealed a motive for the crime.
Photos taken at the crime scene show the Porsche came to a stop outside a Dunkin' Donuts, riddled with at least seven bullet holes on the driver's side of the car.
'The police came and they opened up the door,' donut shop employee Bibekanada Das told the New York Daily News. 'All you could see was the guy laid out in the seat.'