The Ultra-Liner cab-over-engine and Super-Liner II conventional models feature an exclusive three-year, 300,000-mile warranty.

Selling for between $75,000 to $100,000 depending upon the number of options, the trucks feature special graphics that reflect the Statue of Liberty. They are scheduled for delivery in September and October.

"We had a limited edition last summer," explained William Restmeyer, Mack's supervisor of trade relations. "It proved to be an effective way to market our product to independent operators, those who own one truck or a small fleet.

"The concept of a limited edition adds some uniqueness to the product. This appeals to the market segment. Independent operators buy trucks with more concern for the overall appearance and comfort items. This brings in a lot more of the automotive considerations not quite as important to those owning a large fleet.

"A limited-edition run gives us a basis for advertising and special promotions."

Restmeyer said Mack sold all 250 trucks in its "Magnum Series" last year. Because of the recent lackluster market conditions for large heavy-duty trucks, the company will produce only 200 "Freedom Series" this summer.

Restmeyer said the name "Freedom Series" has two references: to the media coverage of the Statue of Liberty restoration and to the freedom from repair costs due to the special warranty.

"The warranty basically covers the entire vehicle," Restmeyer said. "The only exception to coverage is such items as tires and consumables, like oil filters and lubricants."

Mack established this program with the cooperation of about 100 suppliers. Restmeyer added that calculations based on operating conditions show that the "Freedom Series" warranty has a potential premium value of as much as $12,000 to $10,000 for the truck customer.

Customers also have the freedom to specify items such as six cylinder or V-8 diesel engines in 350, 400, 450 or 500 horsepower configurations. All "Freedom Series" trucks sport a contemporary metallic gray paint scheme with red accent striping and Statue of Liberty decals.