Chrysler unveiled the second generation of its minivan trio in 1991. Major additions included optional antilock brakes and new all-wheel-drive models. The standard-wheelbase Plymouth Voyager continued to be marketed in base, SE, and LE trim levels. The longer Grand Voyager models were provided in SE and LE guise. Under the hood, the regular length models had a naturally aspirated 2.5-liter 4-cylinder as the standard engine and a 3.0-liter V6 as an option. A 3.3-liter V6 was standard on Grand Voyagers and optional on regular-length SE and LE models. Four-cylinder Voyagers came with a 3-speed automatic transmission; in short-wheelbase models, the V6 engines were available with either a 3- or 4-speed automatic, while all Grand Voyagers had the 4-speed gearbox. AWD models required the 3.3-liter V6 and used a permanently engaged full-time system.