A Mercedes driver was stopped by police after continuing his journey despite apparently ripping off part of his car on a hedge in Norfolk.
The man, in his 20s from the London area, was stopped at the A47 Blofield service station, near Norwich, at about 09:00 GMT on Saturday.
An officer at the scene said it was the “worst damage he had seen on a vehicle not still at the scene of a crash”.
The driver was arrested after testing positive for alcohol, police said.
Norfolk and Suffolk Roads and Armed Policing Team tweeted photos of a tangle of metal jutting out at an angle from the mangled Mercedes.
It said the driver had “hit a hedge” at an unknown location in Norfolk and was stopped after a member of the public called them.
PC Mark Carter said: “As a police vehicle examiner for over a decade, I was shocked to see a vehicle in such condition still being driven.
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“It was especially dangerous to vulnerable road users, such as pedestrians and cyclists.”
The driver is due to appear in court charged with traffic offences.