Hundreds of pounds of damage was caused during a road rage incident in Dunstable on Friday evening.
The incident happened at around 5.45pm in Luton Road, Dunstable.
The 30-year-old victim – who was driving a blue Vauxhall Zafira – was travelling towards Dunstable when a black Vauxhall Vectra started tailgating him and sounding his horn.
The victim stopped at a red light and the offender pulled up next to him.
He leaned out of his car with a baseball bat and started striking the victim’s car, causing £400 of damage.
It is believed the offender's car had a number plate starting MM51. He is described as a young Asian man, of medium build with a beard.
Bedfordshire Police are appealing for witnesses.