| W-body | |
|---|---|
 | |
| Overview | |
| Manufacturer | General Motors |
| Also called | GM10 |
| Production | 1987–2016 |
| Body and chassis | |
| Class | |
| Layout | FF layout |
| Body style(s) |
|
| Vehicles | Buick Century Buick LaCrosse Buick Regal Chevrolet Impala Chevrolet Impala Limited Chevrolet Lumina Chevrolet Monte Carlo Oldsmobile Cutlass Supreme Oldsmobile Intrigue Pontiac Grand Prix |
| Powertrain | |
| Engine(s) | 122 I4 Iron Duke I4 Quad-4 I4 60° V6 Shortstar V6 High Value V6 High Feature V6 Buick V6 LS4 V8 |
| Transmission(s) | 3-speed 3T40 automatic 4-speed 4T60 automatic 4-speed 4T60-HD automatic 4-speed 4T65 automatic 4-speed 4T60-E automatic 4-speed 4T65-E automatic 4-speed 4T65E-HD automatic 5-speed Getrag 282 manual 5-speed Getrag 284 Manual 6-speed 6T70 automatic |
| Dimensions | |
| Wheelbase |
|
| Chronology | |
| Predecessor | |
| Successor |
|
The W-platform (also known as the W-body) was a General Motors automotive platform underpinning both mid size and full-size front-wheel drive cars — across the platform's three generations from 1987-2016.
Code named GM10, the program began development in 1982 under Chairman Roger B. Smith and debuted in 1987 with the Pontiac Grand Prix, Buick Regal, and Oldsmobile Cutlass Supreme coupés — with the four-door sedan body style introduced for 1990.
The 1997–2005 2nd Generation, or W2 Platform, used both a 110.5 in full-size wheelbase as well as a 109 in mid-size wheelbase.
From 2005-2016, the W3 Platform used a 110.5 in, full-size wheelbase in sedan and coupe configurations, including for the Pontiac Grand Prix (2004-2008), Buick LaCrosse/Allure (2005-2009), Chevrolet Impala/Impala Limited (2005-2016) and Chevrolet Monte Carlo (2000-2007) — each with high performance V8 variants.