A black Mercedes CL500 Coupe and a red Renault Clio were in collision at the Tesco roundabout junction at around 11.10pm on Wednesday, December 14.
The Mercedes made off from the scene.
Pc Grant Fryatt, from the Stanway Roads Policing Unit, said: “The vehicle will be heavily damaged and have no front bumper.
“It is likely to be difficult to repair as it is a rare and heavily customised vehicle. As such it may well be hidden in a lock-up on a side street.
“I am urging anyone who has seen the vehicle, or witnessed the collision, to contact Essex Police.”