The 17-year-old, who was driving a grey Audi A3, was declared dead at the scene after the incident at an Applegreen petrol station in New Town, Uckfield, at about 5pm on February 14.
Sussex Police said the front-seat passenger, an 18-year-old man from Lewes, East Sussex, was uninjured.
Detective Sergeant Rosie Newman, of the Sussex Police serious collision investigations unit, said no other vehicles were involved.
A teenager has died after his car overturned at a petrol station in east Sussex.
