Breakups can be hard and it appears General Motors is taking Bumblebee’s return to a Volkswagen Beetle pretty bad as the automaker has decided to auction four Camaros from the popular Transformers franchise.

Set to be sold at Barrett-Jackson’s Scottsdale Auction later this month, the collection includes cars from Transformers, Transformers: Revenge of the Fallen, Transformers: Dark of the Moon, Transformers: Age of Extinction and Transformers: The Last Knight. All four cars will be sold as a group and proceeds will benefit Operation Homefront which aims to “build strong, stable and secure military families so they can thrive in the communities they have worked so hard to protect.”

There’s no word on an auction estimate, but the first Bumblebee helped to promote the launch of the fifth-generation Camaro which made its return after an absence of nearly eight years. Following its appearance in the original live-action Transformers movie, the car was updated and reused for Transformers: Revenge of the Fallen.

The Camaro from Transformers: Dark of the Moon was largely identical to its predecessor, but the model from Transformers: Age of Extinction is unique as boasts a streamlined exterior with concept-like styling. The final Camaro, from Transformers: The Last Knight, acted as a preview of the 2019 model.

Barrett-Jackson didn’t say much about the movie cars, but each one features a V8 engine which is paired to an automatic transmission. They all send power to the rear wheels as should be expected.

All four cars are being sold with a scrap title and that means they aren’t street legal. Despite this, the models will likely bring in a lot of money as the Transformers franchise – excluding Bumblebee – has brought in over $1.4 (£1.1 / €1.2) billion at the box office.