A record announced four-day total of 70,525 spectators joined in a celebration of motorsports history at Mazda Raceway Laguna Seca last weekend for the Rolex Monterey Motorsports Reunion. Featured marque BMW was celebrating its 100th anniversary at the event, and a rich variety of BMW racing machinery contributed to the visual and auditory overload experience for fans. Here's a gallery of some of the BMW cars on hand.