General Motors W platform

The W-body is a automobile platform from General Motors which underpins mid-size cars with front wheel drive. The platform debuted as the GM10 program in 1988 with the Pontiac Grand Prix and Oldsmobile Cutlass Supreme. Those cars were never very successful, but the platform continued for 16 years and was refreshed for 2004 and beyond.

Vehicles using the W-body include:

• 1988-2003 Pontiac Grand Prix
• 1988-2003 Buick Regal
• 1988-1997 Oldsmobile Cutlass Supreme
• 1997-2003 Buick Century
• 1998-2002 Oldsmobile Intrigue
• 2000 Chevrolet Monte Carlo
• Chevrolet Impala

2004

The W platform was updated in 2004 rather than a planned stretched Epsilon. The cars will be built at GM's two Oshawa, Ontario plants.

Vehicles using the updated W platform:

• 2004 Pontiac Grand Prix
• 2005 Buick LaCrosse