A man brandishing a hammer stormed the bedroom of a young couple in the early hours of Sunday morning.
The man then drove away at high speed and crashed into a tree stump, leaving damaged parts behind.
Police believe the parts belong to a dark Toyota Rav4.
The car will have moderate damage to its front left bumper.
The man was covering his face with a bandana when he broke into the Napier house about 5.30am.
There were two people in the vehicle, police said.
Anyone with information should contact Detective Paul Buckley at Napier Police firstname.lastname@example.org
Information may also be provided anonymously to Crimestoppers at 0800 555 111.