The Chevrolet Express and GMC Savana are full-size vans from General Motors. They replaced the Chevrolet Van and GMC Vandura in 1996. The Express and Savana currently hold 44.8% of the full-size van market in the United States, just behind rival Ford's E-Series. The Express outsells the Savana by more than 3 to 1. After 2003, the Express and Savana had updated sheetmetal similar to the GMT800 light trucks and SUVs, and at the same time, fitted with the LS engines. In 2004 Stability Control (Stabilitrak) was added to all passenger vans. In 2008 the interior was updated and side impact roof airbags were standard on all passenger models. They also offer the E85 Flexfuel Vortec 5.3L V8 engine in both the 2008 Express 1500 Work Van and Passenger Van. The 6.6L Duramax Diesel V8 was added as an option for 2006.