The two other finalists in the full sales, parts and service category were Ferndown Commercials Wimborne and HVRS Sheffield. In the parts and service dealer category, the other two finalists were AK Commercials Bristol and MC Truck & Bus Southampton.
The nationwide challenge attracts entries from ITUK dealers throughout England, Scotland and Wales.
"Every year I am overwhelmed by the level of expertise and knowledge that our dealers display during the finals of our annual Dealership Challenge," comments Peter Murphy, managing director of Isuzu Truck (UK).
"We can all see at first-hand how our dealers continue to operate at the very highest standards and this gives us the assurance that all of our customers are getting the very best service that they deserve," he continues.
"In addition, every year the two top technicians from the Dealership Challenge are invited to go to Japan to compete in Isuzu Motors' global I:1 Grand Prix competition."