NEW YORK – The Lincoln Aviator, Chrysler PT Turbo, an all-new marque from Toyota Motor Corp., Saturn's Ion coupe and sedan and an all-new "surprise" model from Ford Motor Co. are expected to make world debuts at the New York International Auto Show that opens on March 29.

Ford is keeping a tight lid on details surrounding the new vehicle it will unveil to the media prior to the exhibition’s opening, but sources indicate it will be a high-volume, utilitarian passenger car wearing a Ford Div. badge. The vehicle isn’t a replacement for any existing model, sources say, but carves out a new niche for the brand.

What is known for sure is that the Lincoln Aviator also will take its initial bows here. Smaller than the Navigator, the Aviator is built on the Explorer platform but offers more power. Ford also will unveil its new Crown Victoria for the first time. It's identical in most respects to the Mercury Marquis shown previously. Ford also will display a new low-volume Mustang derivative, plus its new Focus fuel cell prototype (see related story: Ford Debuts New Zero-Emission Focus).

Saturn Corp. will pull the wraps off its all-new Ion coupe and sedan that go on sale this fall. The Ion replaces Saturn's long-in-the-tooth S-series entry-level model (see related story: Annual SSR Sales Goal 11,000 Units). Buick Div. will provide the first public showing of the ’03 Park Avenue Ultra.

Toyota will premiere two concept cars for its recently announced Scion marque. Scion is an attempt to extend Toyota's reach to a younger audience. The median age of Toyota owners is 48. Scion will target buyers under 20, many of whom will be purchasing their first car (see related story: Toyota Gives Scion Name to Youth Brand).

Mercedes-Benz will provide reporters with a clearer glimpse of its new ultra-luxury Maybach. The car was shown in Geneva earlier this month, but was mostly obscured by very dark tinted glass. At an offsite location here, the Maybach will be displayed behind clear glass. Meanwhile, a Chrysler PT variant – believed to be a turbo version of the retro crossover – will make its world debut in New York, as well as the production version of the Chrysler Pacifica sports tourer. One of the few changes expected from the concept shown in Detroit in January is replacement of the glass roof with a conventional steel one.

Nissan Motor Co. Ltd. will display the second and third entries in a planned all-new, four-vehicle blitz. On tap is the Murano, a crossover/utility vehicle on the Altima platform that Nissan promises defies all present vehicle categorizations. Also on display will be the Infiniti G35, and a new mid-level "M" model that slots between the G35 and the Q45.

Another show intro will feature the Acura DN-X concept car (see related story: Acura Concept to Debut at New York Auto Show). It's a mid-engine, AWD vehicle with a 400-hp hybrid powertrain.

Kia Motors America Inc. will introduce its ’03 Rio and Rio Cinco sub-compact sedans. The Cinco is a 5-door model with a more powerful engine.

Mitsubishi Motor Sales of America Inc. will show off its ’03 Montero. It features styling refinements and a larger displacement engine.