GTZ model debuts, with high-output version of Quad 4 engine. GTZ has 180-horsepower, and is available only with five-speed transmission. Short-lived GTU is dropped. An aggressively hyped convertible model never made it to production. Base 2.0-liter engine is swapped for peppier 2.2-liter unit. Optional V6 goes from 2.8 liters to 3.1, and now makes 140 horsepower. Air conditioning is made standard on all but the base model. All Berettas get new cloth seat covers and cushions.