<P> 1997 models received a few minor updates, including the addition of a color keyed cargo cover . </P> <P> 1998 remained largely unchanged, save for a few changes in the electronics . More ergonomic switch control panels and a newly designed 4 spoke steering wheel, which also necessitated a redesign of the airbag system . </P> <P> 1999 models received both major cosmetic and interior enhancements . A new "fat lip" bumper was designed to allow for an extended crush zone on the front of the frame, as well as new multi-parabola style headlights, projector style fog lamps, and updated side marker lights and front turn signals . Vehicles with "Limited" and "Highlander" (later called "Sport Edition") trim received color - keyed running boards, front and rear bumpers, mud flaps and flares . The ergonomics of the interior was completely changed, moving all the controls to the center of the dash for the rear window, and defrost, it also received a new instrument panel with a digital odometer . The Limited trucks also received a brand - new electronic temp control, and upgraded stereo . The multimatic transmission became available as an option for 4WD 4Runners in 1999, giving the option of AWD operation . </P> <P> 2001 models received new transparent tail lights and new front grille design . The wheels were also changed to a five - spoke design rim . Limited models received newly designed five spoke wheels as well, however different from SR5 and base model . Also included was a new, sleeker side view mirror design . SR5 and base model 4Runners also have redesigned climate control units utilizing 3 knobs and 2 buttons, contrary to the 1999 model's 2 sliders and 2 knobs. 2001 models were equipped with Vehicle Stability Control standard, and 4WD models came standard with the multimatic transmission . The optional e-locker for the rear differential was dropped in 2001 . </P>

When did the toyota 4runner body style change