Four men were arrested after at least 14 cars were damaged in a late-night Aylesbury attack.
Police said most of the vehicles in the Tring Road area had their wing mirrors damaged early on Saturday morning.
Three 18-year-old men and a 20-year-old man were arrested on suspicion of criminal damage.
They have all been released on bail until January 14, 2013.
Any witnesses should call police on 101.