Police officers are appealing for information after a 19-year-old man suffered a fractured skull and broken leg in a crash with a car which left the scene.
The pedestrian was in Kingsway, Kirkby-in-Ashfield, when the collision happened at around 2.35pm on Wednesday, January 31.
The black Ford Focus drove off toward to Nuncargate. It was later seen being driven to the rear of Jacksdale Social Club at 11.50pm the same day where it was set alight.
There was also a sighting of a similar vehicle with a smashed windscreen in Salmon Lane.
Anyone who saw the collision, or the vehicle with a smashed windscreen, particularly if you have dash-cam footage, is asked to call Nottinghamshire Police on 101, or Crimestoppers anonymously on 0800 555 111, quoting incident number 453 of January 31.