1957 Buick Roadmaster 75 Series Article and photos by Larry Crain According to Wikipedia, the 1957 Buick Roadmaster underwent a change as a mid-year production (March 1957) and became a Roadmaster designated as a Model 75. It was distinguished by standard power seats and windows, carpeted lower doors, a one-piece rear window, and Deluxe hubcaps…. Read more »