GMC will unleash four vehicles to grab the limelight and take pleasure in stardom. In a product placement coup, four GM vehicles, including the all-new Chevrolet Camaro to be launched, won starring roles in the new action flick, “Transformers.”

While other automakers have regularly wheel and deal to put their product lines in movies, GM’s vehicles are cast as shape-shifting action stars in the projected summer blockbuster.

This is a wonderful opportunity for General Motors to get its product in front of millions of people. While vehicles starring in a movie would not necessarily drive people into showrooms like a rebate program will drive them into showrooms, it will reach people in a very different setting.

Michael Bay’s “Transformers” also stars Pontiac Solstice, Hummer H2 and the GMC TopKick pickup truck.

Still, GM was not a shoo-in for the prime vehicle roles. In fact, Bay initially was considering another automaker for the Bumblebee character, which was originally a yellow Volkswagen Beetle. But the yellow Camaro concept became the inspiration for the movie Bumblebee after Bay saw a full-scale model. It is a perfect fit because it’s a muscle car and still state of the art. The biggest problem was that the car wasn’t being made.

Pontiac’s Solstice will be playing Jazz, which was played by a Porsche in the cartoon. The Solstice also had to be created because GM was only selling it as a convertible as filming began. Bay wanted Jazz to be a gray, hardtop Solstice. Ratchet, the search-and-rescue vehicle, is played by a Hummer H2 painted fluorescent light green and modified with off-road lights, a winch and brush guard in front, and shovels on its sides. Ironhide, a rugged off-roader, is played by a GMC TopKick pickup truck with a Duramax diesel engine.

Also, the Ford has put its Decepticon Saleen Mustang car in the action flick.