According to edmunds, the 1998 Ford Mustang gains standard equipment, such as power windows and door locks, air conditioning, and premium sound. Options are shuffled as well, making it easier to choose the car you want. GT models get a slight boost in power.
The Ford Mustang has been around for 34 years. After receiving a dramatic redesign in 1994, and the 4.6-liter modular V8 in 1996, the Mustang design team has been quietly preparing for a freshening in 1999 and a total redesign in 2002. Changes to this year's model are limited to additions to the standard equipment list, thus making the Mustang a better value for 1998. That's OK, Ford's pony car has been outselling the competition from GM by nearly a 2-1 margin since its redesign.
Download 1998 Ford Mustang Owners Manual