For the fourth film in the Transformers movie franchise, Transformers: Age of Extinction; director Michael Bay demanded a series of extensive modifications to the Bumblebee Camaro, the movie's biggest star. Okay, maybe Megan Fox is the better known star of the series, but she's not in this one. The Bumblebee Camaro remains a steady constant, getting more awesome with every sequel. In this one, the car gets edgier, and more aggressive, modified with features not seen on the road today. Changes were deliberated by director Michael Bay, GM's Vice President of Global Design Ed Welburn and the GM North Hollywood Advanced Design Centre. Revisions took a month to redesign, and an additional three months to build. Chevy Sonics, which appear in the film too, also received revisions including 300 hp engines, widened stances, and full roll cages. The Bumblebee Camaro has been transformed for the newest Transformers movie. It's sporting a bunch of design changes, to help it fight alongside Optimus Prime and the other Autobots. The Bumblebee is still based on a 2014 Camaro SS. It's stance is two inches wider on each side, making it appear more aggressive. Other changes affected the lamps, front fascia, rocker panels, spoiler, exhaust and rear lower diffuser. Special attention was paid to the car's hood.