Police are appealing for witnesses after a woman was assaulted by a passenger while driving near Horsham.
The incident occurred on the A264 at Kilnwood Vale, on 27 January.
The woman managed to drive to Holmbush Potteries Estate to seek help, where the suspect got out of the vehicle and fled the scene on foot.
A 34-year-old man from Crawley, who is known to the victim, has since been arrested and released on conditional bail until 28 April as enquiries continue.