DETROIT (Aug. 11)—Uniroyal Tire today began work to fortify and update the appearance of its 80-foot tire, which began as a ride during the 1964-65 New York World's Fair and has been a Detroit landmark for nearly 40 years. The tire maker will spend about $800,000 on the renovations which include more than 30 new steel beams, new asphalt and storm drains. On the exterior of the tire, the base will be rebuilt and repainted, the giant hubcap will be repainted in silver, the giant nail now a part of the Unigard tire will be removed and the brand's Web site address will be added. New lighting, fencing and landscaping also will be added. The refurbishment, a part of a local revitalization effort along the Interstate 94 corridor between Detroit and Ann Arbor, Mich., should be completed by October, a Michelin spokesman said.