Thames Valley Police has confirmed that the incident happened at around 11.05pm on Thursday, August 6, on the A4010, approximately 100 metres north of Little Kimble Railway Station near Princes Risborough. Police said the driver of the BMW failed to stop at the scene following the collision. A 36-year-old man from Reading has since been arrested on suspicion of causing serious injury by dangerous driving and failing to stop following a road traffic collision. “If you have dash-cam footage or are a resident who may have CCTV or doorcam footage, please come forward. “Anyone with information is asked to contact Thames Valley Police by calling 101 or submitting a report via the website, quoting reference number 43260407377.”