Grem is one of the main antagonists of Cars 2.
Grem is a dented, rusty orange AMC Gremlin. After years of being dismissed for his design, even being called a "lemon," Grem has a big chip on his fender that has led him to the underworld of international espionage. As a henchman for a villainous boss Professor Z, Grem and his partner-in-crime Acer are trying to sabotage the World Grand Prix and the famous race cars competing in it. When Grem and Acer mistake Mater for an American agent with important top-secret information, the ruthless lemons set out on a round-the-globe chase to stop Mater from foiling their evil scheme.
Grem is a mean Gremlin who always love to pick on somebody. Grem gets in a fight with his partner Acer when they were trying to kill Lightning with the EMP camera. He taunted Mater for taking his bullets.