Chevrolet's 1991 Astro mini-van features include full-time all-wheel drive, and anti-lock brakes on all wheels. The 6-cylinder Chevy Astro van has 5 seats, 3 doors, and a 4.3L engine. It's very popular among its owners, according to owner reviews. Owner reviews are enthusiastic about the Chevy Astro's handling and pleasurable driving, cargo room, and engine power. They report it's easy to work on for home mechanics. On the down side, some reviewers complain about problems with the exterior paint, and inadequate leg room. Reliability reviews are mixed. The 1991 Chevy Astro's uni-belt system (one belt driving many engine components) can cause the van to break down if the belt loosens or breaks.