What is w body gm?

The W Body platform is a General Motors automobile platform that was used extensively from 1988 to 2017. It was a mid-size front-wheel drive platform, and its most recognizable models included the Chevrolet Lumina, Pontiac Grand Prix and Oldsmobile Cutlass Supreme. The W Body platform went through several redesigns and updates during its service life, which helped to improve ride quality, handling, and overall safety. The W Body platform was eventually replaced by GM's Epsilon and Epsilon II platforms, which were used for the Chevrolet Malibu and other mid-size GM models.