The term 'Thrifty Competitor' refers to three major car rental companies: Hertz, ALAMO, and Avis. Hertz is a global car rental company with over 10, 000 locations in 150 countries. ALAMO is a subsidiary of Enterprise Holdings, the largest car rental company in North America. Avis is a leading car rental company with over 5, 500 locations in 165 countries. All three companies offer competitive rates and services, making them popular choices for travelers looking for a thrifty option.