Adelaide woman smashes $446,000 Mercedes with baseball bat

An Adelaide woman has bashed a brand new Mercedes and spray painted it with the words 'cheater', 'slut' and 'whore'.

Witnesses say the woman, who appeared to be in her 20s, approached the NZ$446,000 S63 AMG calmly before smashing the car it with a baseball bat.

The Sun reports the car was purchased brand new only last week by a local businessman.

A bystander told Adelaide Now that she turned up in a Mercedes G Wagon and started off by painting explicit words on the car.

She then got a baseball bat out of her car and smashed the mirrors.

The woman then fled the scene.

Later the same day another woman reportedly picked up the car and drove it to a repairer shop on the same street, refusing to comment.