One of the lead criminal lemon cars working under Professor Zündapp. He participates in the violent confrontation with spy Rod Redline and helps execute the conspiracy to sabotage the World Grand Prix racers using electromagnetic emitters. He is eventually arrested alongside the other conspirators.
Professor Z directs Grem within the criminal lemon organization.
Grem is identified as one of the criminal lemon cars working under Professor Z and participating in the sabotage operation.
Grem represents the criminal threat pursuing Mater across the investigation.
Grem participates in the lemon operation, whose agents pursue Mater in Tokyo and later capture him with Finn and Holley in Big Bentley.
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