if you look at the kit boxes and the contents on hlj and/or Hobbysearch, you can see that the differences between the 98 and 96 are:
different front bumper
different engine deck lid
rear wing on the 96 kit
different wheels
in case you want to know, the model year 99 car also has a different dashboard; representing that which was used in the final 6.0 car.
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