vehicles. As the design of the dashboard precluded a conventional glove box, Chrysler added a large storage drawer underneath the passenger seat (a feature retained in later generations of Chrysler minivans and the Chrysler PT Cruiser). The minivans also became the first automobiles ever with modern cup holders. 1984–1986 At their 1984 launch, as with the K-Cars, the Dodge Caravan and Plymouth Voyager were externally distinguished largely by their grilles. Both vehicles were fitted with four headlights, with the Caravan fitted with an eggcrate grille while the Voyager was fitted with a horizontally-oriented grille. In what would become a signature styling feature of 1980s Chrysler minivans, top-trim Caravans and Voyagers were both offered with simulated woodgrain as an option. In following with many other Chrysler vehicles, for 1986, Chrysler minivans shifted from 4-lug to 5-lug wheels. To reduce high-speed wind noise, Chrysler added a bumper-mounted air dam. 1987–1990 The 1987 model year saw a mid-cycle update to the S-platform minivans. Largely centered around the May 1987 introduction of the Grand Caravan and Grand Voyager, the update brought a new front fascia and taillights. To better differentiate the Caravan from the Voyager, the model lines received different grilles; all models except the Mini Ram Van (cargo van) were shifted to flush-lens composite headlamps. Fourteen inches longer in length than a standard-wheelbase Chrysler minivan, the Grand Caravan/Grand Voyager was the largest minivan in North America in 1987. The first Chrysler minivans fitted with a V6 engine, the Grand Caravan/Grand Voyager eventually became the two most popular configurations. With both rear seats removed, the "Grand" minivans offered 150 cubic feet of cargo room, 25 extra than a standard wheelbase Chrysler minivan. The front bench seat and Convert-A-Bed, both seldom ordered, did not return for 1987. Interior upholstery was upgraded on several trims, with base vinyl seats removed (and deluxe vinyl remaining as an option on SE trim); for the first time, leather seating was offered on LE/Grand LE trim. For 1989, the minivans saw a minor update. To improve fit and finish, Chrysler redesigned the front and rear bumpers, with single-piece bumper covers, painted to match the color of the body. The early-1980s K-Car steering wheel was replaced by a 3-spoke design (though the rest of the dashboard remained unchanged). In addition to the standard trim levels, Chrysler added the top-line Dodge Caravan ES and Plymouth Voyager LX; as an early 1990 model,