Investigators said shortly after midnight, a motorcyclist rear-ended the BMW at Leestown Road and Robinson Way and that the BMW driver just kept going.
Police said the BMW lost its rear bumper in the collision.
Investigators said after the motorcycle hit the BMW it went into the oncoming lane and was hit by another vehicle.
The motorcyclist died.
Anyone with information about the vehicle, or the incident is asked to call the Lexington Police Traffic Section at 859-258-3666.