According to officers, the collision occurred on La Rue du Trot in St. Martin around 05:20 on Sunday 13 December.
The offending vehicle, which is thought to be blue, is believed to have been driven off in the direction of La Hougue Bie.
Police said it was likely to have sustained significant damage to its front due to the impact.
Pictured: Police said the collision occurred on La Rue du Trot in St. Martin.
Anyone who saw what happened or has more information is urged to call 612612 or make an anonymous report via the Crimestoppers website.