As Buick’s flagship sedan, the 2003 Park Avenue is offered as a four-door Sedan or a four-door Sedan Ultra. The base model features a 205 horsepower 3.8-liter V6 engine while the Sedan Ultra generates about 35 more, with its 3.8-liter V6. In addition to passenger capacity for up to six people, the Park Avenue features a solid list of luxury equipment, including auto climate control, cruise control, keyless entry, full power accessories, a leather-wrapped steering wheel with audio controls, a trip computer and AM/FM/CD audio. Safety features include front/side-body airbags and ABS.