SAN FRANCISCO— Hotwire.com, a discount travel service, unveiled a series of enhancements to its growing hotel product including better pricing, better availability, and more hotel choices. New enhancements feature an extended selection of cities and areas, more hotels and availability in existing city areas, several new top-notch hotel partners, new detailed maps, and an improved Hotel Ratings Guide. Among recent improvements, Hotwire added 16 new U.S. cities including Austin, TX; Charlotte, NC; Cleveland; Cincinnati; Columbus, OH; Detroit; Ft. Lauderdale; Indianapolis; Kansas City, MO; Minneapolis; Nashville, TN; Norfolk/Virginia Beach, VA; Portland, OR; Raleigh/Durham, NC; San Antonio; and St. Louis. Some of Hotwires new hotel partners include Baymont Inns & Suites, Drury Hotels, Hawaiian Hotels & Resorts, Ian Schrager, Kimpton Group, Le Meridien, Prince Hotels (Hawaii), and Woodfin Suites. Hotwire has also added several new quality ratings designations to better segment and explain particular hotel types. The new star ratings include 2.5 (Extended Stay), 3.5 (Boutique Hotels), and 4.5 (Deluxe).