Country from its traditional station wagon usage to a minivan; sold exclusively in a long-wheelbase version, the Town & Country became the highest-trim Chrysler minivan. Second generation (1991–1995) The second-generation Chrysler minivans were released for the 1991 model year, returning the Dodge Caravan and Plymouth Voyager, their extended-wheelbase "Grand" versions, and the Chrysler Town & Country. The minivans were introduced to Mexico, with Chrysler using the Chrysler Grand Voyager/Grand Caravan nameplate. Designated the Chrysler AS platform (as Chrysler switched to a two-letter platform nomenclature), the second-generation minivans underwent a substantial revision of the body (sharing only the front door and sliding door stampings) and chassis (the front suspension was retuned and the rear suspension was redesigned entirely); powertrain commonality shifted from the K-car sedans towards its larger derivatives. In a first for the segment, the model line was fitted with a standard driver-side airbag (1991) and optional integrated rear child safety seats (1992). Following its introduction in its Ford and GM competitors, Chrysler introduced an all-wheel drive system as an option for 1991. For 1994, the model line underwent a mid-cycle revision. While the model line was officially classified a light truck by the US government, the minivans were upgraded to meet 1998 federal safety standards for cars, adding side-impact door beams, dual airbags, four-wheel disc brakes, and a redesigned dashboard. The second-generation minivans are the last versions of the model line to be fitted with a manual transmission in North America and also the final versions fitted with exterior woodgrain trim. From 1993 to 1995, the Chrysler TEVan was a limited-production electric vehicle based on the Dodge Caravan; sold to fleet buyers, between 56 and 80 were produced. For 1994, Chrysler offered a CNG (compressed natural gas) version of its minivan; the fuel tank replaced the spare tire well. ES platform The ES platform is the European counterpart to the North American AS platform. Alongside production by Windsor Assembly in Canada, production of export-market minivans began in 1992 in Graz, Austria (in the Eurostar joint venture factory between Chrysler and Steyr-Daimler-Puch). Alongside the European-market Chrysler Voyager and Grand Voyager, the ES platform serves as the basis for the Dodge Mini Ram Van (a cargo van exclusive to the Netherlands). Third generation (1996–2000) The third-generation Chrysler minivans were released in January 1995 for model year 1996. In a $2.8 billion redesign of the model line (the most expensive design program