The Daytona, introduced for 1984, targeted younger drivers. Fresh front/rear styling arrived for '87, featuring pop-up headlamps. Four-wheel disc brakes went into '89 models. A new interior for 1990 included a fresh dashboard and a new steering wheel that contained a driver-side airbag. A 2.5-liter 4-cylinder went into base and ES Daytonas. Two turbocharged engines were also available: a 150-horsepower 2.5-liter version for the ES Turbo (and for Shelbys with automatic), plus a 174-horsepower 2.2-liter VNT Turbo IV. Available only with stick shift, that hotter turbo was standard in the Daytona Shelby and optional with the C/S competition package. For the first time in 1990, Daytonas could be equipped with a V6 engine, broadening the coupe's appeal. Made by Mitsubishi, the 141-horsepower 3.0-liter V6 was optional in base and ES models. This year also brought an improved 5-speed gearbox. Also for '90, Shelbys were available with electronic variable suspension, which used switches to select firm, normal, or soft shock-absorber damping.