W-Body Suspension

The GM W-body platform, also known as the W-platform, was a significant development in General Motors’ lineup, underpinning many mid-size and full-size front-wheel-drive cars from 1987 to 2016. Here’s a brief history of the suspension systems used in these vehicles:

Early Development and First Generation (1987-1996)

  • Initial Design: The first generation of W-body cars, which included models like the Pontiac Grand Prix, Buick Regal, and Oldsmobile Cutlass Supreme, featured a unique rear suspension setup. This setup used a transversely installed, fiberglass mono-leaf spring combined with struts1. This design was inspired by the Chevrolet Corvette and aimed to provide a balance between ride comfort and handling performance.
  • Challenges: While innovative, the transverse leaf spring design had its drawbacks, including complexity and maintenance challenges.

Generation 1.5 (Mid-1990s)

Second Generation (1997-2005)

Third Generation (2006-2016)