Officers are appealing for witnesses to a collision that happened on the A480 from the B4230 to Sarnesfield court, Norton Canon in Herefordshire.
The collision happened at around 6.20pm yesterday evening (14 August) between a red Scania artic lorry and a grey Audi A4.
The driver of the Audi was treated by paramedics on the scene and then flown to the QE hospital in Birmingham with serious injuries.
Officers carrying out enquiries into the collision are appealing for witnesses, including any motorists on the road around the time of the collision with dash-cam footage.
Anyone with information is asked to contact PC Cooke by email kristoffer.cooke@westmercia.police.uk or by calling 07773053658
Alternatively, information can be shared anonymously with the independent charity Crimestoppers on 0800 555 111 or by visiting www.crimestoppers-org.uk
