A motorist assaulted a couple after they had waved to slow him down.
Police are appealing for witnesses after the incident in High Street, Bognor, at 9.30pm on June 7.
The motorist was said to be driving a distinctive red Audi S3 Quatro with a non-standard loud exhaust.
The victims, who were on foot, had waved for him to slow down when he got out his car and assaulted them.
A music event had just ended in nearby Hotham Park and officers believe there would have been plenty of witnesses as a result.
A 33-year-old man has been arrested on suspicion of assault.
Anyone witnesses should call police on 101 or email firstname.lastname@example.org, quoting serial 1567 of 7/6.
Alternatively call Crimestoppers free and anonymously on 0800 555 111.