Enterprise Rent-A-Car is an American car rental company headquartered in Clayton, Missouri, United States in Greater St. Louis.
 In addition to car rental, Enterprise also oversees commercial fleet management, used car sales, and commercial truck rental operations.
Enterprise Holdings, Inc. is an American holding company headquartered in Clayton, Missouri.
 It is the parent company of car rental companies Enterprise Rent-A-Car, National Car Rental, Alamo Rent a Car, and Enterprise CarShare.
 The holding company was formed in 2009 as a result of Enterprise Rent-A-Car's 2007 acquisition of Vanguard Automotive Group, the parent company of National Car Rental and Alamo Rent a Car.
 Enterprise ranks as the largest car rental company in the United States.
 The company sells its used cars through Enterprise Car Sales.
 It is owned by the Taylor family
Irish Car Rentals is a car rental company headquartered in Santry, Dublin that provides car rental services in Ireland.
 The Irish Car Rentals was the owner of GoCar, the first car sharing service in Ireland and has the Europcar franchise in Ireland.
The Hertz Corporation, a subsidiary of Hertz Global Holdings Inc., is an American car rental company based in Estero, Florida that operates 9,700 international corporate and franchisee locations.
 As the second-largest US car rental company by sales, locations, and fleet size, Hertz operates in 150 countries, including North America, Europe, Latin America, Africa, Asia, Australia, The Caribbean, the Middle East, and New Zealand.
 The Hertz Corporation owns Dollar and Thrifty Automotive Group - which separates into Thrifty Car Rental and Dollar Rent A Car.
Payless Car Rental, Inc. is a car rental company owned by Avis Budget Group and headquartered in St. Petersburg, Florida.
 While mainly a franchise system, the company owns and operates several corporate locations.
 Payless Car Rental, Payless Car Sales, Payless Parking and REZlink International are sister companies under the umbrella of Avalon Global Group.
WhizzGo is a United Kingdom car rental company that provides rental cars in more than 258 countries worldwide.
 The company started as a pay-by-the-hour service based in the United Kingdom.
 Since July 2017 it is restructured and is now providing car rental services by price comparing rates of most of the rent-a-car suppliers worldwide.
Avis is an American car rental company headquartered in Parsippany-Troy Hills, New Jersey, United States.
 Avis, Budget Rent a Car and Budget Truck Rental are all units of Avis Budget Group.
Avis Budget Group, Inc. is the American parent company of Avis Car Rental, Budget Car Rental, Budget Truck Rental, Payless Car Rental, Apex Car Rentals, Maggiore Group and Zipcar.
 The company's headquarters are located in Parsippany-Troy Hills, New Jersey, United States.
Andrew C. Taylor is a U.S. businessman.
 He is Executive Chairman of Enterprise Holdings.
 Andrew Taylor is the son of Jack C. Taylor, who founded Enterprise Rent-A-Car in 1957.
Budget Rent a Car System, Inc. is an American car rental company that was founded in 1958 in Los Angeles, California by Morris Mirkin.
 Budget's operations are headquartered in Parsippany-Troy Hills, New Jersey.

Question: What position is the son of Jack C. Taylor in the American car rental company headquartered in Clayton, Missouri, United States in Greater St. Louis?
Answer: Executive Chairman