Bimmerfest is an annual gathering held in California where thousands of enthusiasts across the country are gathering to showcase their BMWs. This year’s event took place in Rose Bowl, Pasadena, and it gathered thousands of enthusiasts and their cars.

All the big players in the car modding and tuning business were there as well showcasing their latest work. The event caters not only to BMW enthusiasts, but to any car fans that would like to see some of the most rare bimmers in the United States.

2,500 cars were pre-registered this year, and while unfortunately we couldn’t capture all of them, we are bringing you a photo gallery that showcases some of these unique cars.

[Photos by Andrew Dilanian | Autospies | AJ Tang LiteMedia | PySpeed | European Auto Source]