Upgraded brakes and revised pricing are the main 2003 changes for this elderly minivan. Also sold as the GMC Safari, Astro comes in one body length with passenger-side sliding door, plus 4.3-liter V6, automatic transmission with Tow/Haul mode, and rear-wheel drive or all-wheel drive. For 2003, base-trim models are reduced in price, and some items in the uplevel LS and LT packages become stand-alone options. All models seat eight on two front buckets and two 3-place rear benches; 2nd-row buckets are optional. Available are side-by-side rear cargo doors or extra-cost Dutch doors with separate-opening upper glass. Astro also comes as a 2-seat Cargo Van. Antilock brakes are standard, but now include 4-wheel discs in place of the previous disc/drum setup. Traction control and side airbags are unavailable. All Astros go from 15- to 16-inch wheels, with standard alloys for LS and LT, and interiors get smoother trim surfaces with energy-absorbent backing designed to reduce head injuries. Astro and Safari are America's only truck-based minivans, with a basic design that dates from the late 1980s.