Park Avenue Ultra, the top model, is fast, stable and satisfying to drive. Its supercharged V6 engine delivers quick acceleration performance. While still reading the sheet music written for a large, front-drive American sedan, Ultra is surprisingly agile and responsive. It's equipped with StabiliTrak, a superb active safety system that can detect the beginning of a skid and help keep the car on its intended course by pulsing individual brakes.
The Park is dated, however. Its interior is old-fashioned, and there are a lot of other, newer products out there. The standard Park Avenue offers a good value among large sedans, but the Ultra faces competition in its price class.