The 49 cars entered are the most for a WeatherTech Championship event at Watkins Glen since 2014. Support races have attracted record numbers, too. The Lamborghini Super Trofeo North America doubleheader race weekend has 38 entries, seven more than its best a round in the series’ 10-year history. The IMSA Michelin Pilot Challenge race has 44 cars. Expected are 34 in the Porsche Carrera Cup* North America Presented by the Cayman Islands races. There are 29 in the Idemitsu Mazda MX-5 Cup Presented by BFGoodrich Tires doubleheader. If AutoInformed’s sums are correct, 194 cars will compete in a total of eight races