North Yorkshire Fire Service released the picture, taken by colleagues from County Durham, as investigation work continues at the site in Brompton Road.
Dozens of firefighters were drafted in to tackle the fire on Wednesday evening amid fears that gas cylinders inside could explode.
Homes were evacuated in Priory Close, while shoppers and staff at a nearby Asda were also moved out of the store as a precaution.
Roads around the site were kept closed yesterday as crews continued to damp down the site and monitor it.
Issuing an update via Twitter, the service today said: "Here's a photo from @CDDFRS drone of the damage caused by the fire to the vehicle workshop in Northallerton.
"We'll be on the site this morning for fire investigation. Thanks again to residents and businesses of Northallerton for your patience whilst we dealt with the incident."