Express is the full-size van at Chevrolet and a twin of the GMC Savana. Express comes in passenger and cargo versions and is sold in unfinished form to van converters. Two sizes and five engines are available, and all models have a full frame and rear-wheel drive. Regular Express models have a 135-inch wheelbase and are 219 inches overall. Extended models are 20 inches longer in both dimensions., Short or long, choices in side and rear doors are the same. Buyers can choose from two swing-out passenger-side doors or a single sliding door (a no-cost option). At the rear, all models have two doors that open 180 degrees to the sides. A rear defogger is a new option on models with rear windows (which are optional on cargo models).