Financial questions hound 2 of F1's 3 races in North America

Racing Point driver Sergio Perez of Mexico steers his car, during a Formula One pre-season testing session at the Barcelona Catalunya racetrack in Montmelo, outside Barcelona, Spain, Wednesday, Feb.20, 2019. (AP Photo/Joan Monfort)

Mercedes driver Lewis Hamilton of Britain steers his car, during a Formula One pre-season testing session at the Barcelona Catalunya racetrack in Montmelo, outside Barcelona, Spain, Wednesday, Feb.20, 2019. (AP Photo/Joan Monfort)

Mercedes driver Lewis Hamilton of Britain steers his car, during a Formula One pre-season testing session at the Barcelona Catalunya racetrack in Montmelo, outside Barcelona, Spain, Wednesday, Feb.20, 2019. (AP Photo/Joan Monfort)