Table:
text: 1973 USAC Championship Car season
Schedule and results
Schedule and results
Rnd Date_ Race_Name Length_ Track Location_ Pole_Position Winning_Driver
12 September 16 Michigan Twin 125s #1 mi (km) Michigan International Speedway Brooklyn , Michigan Gordon Johncock Bill Vukovich II
13 September 16 Michigan Twin 125s #2 mi (km) Michigan International Speedway Brooklyn , Michigan Gary Bettenhausen Johnny Rutherford
14 September 23 Trenton 200 mi (km) Trenton International Speedway Trenton , New Jersey Gordon Johncock Gordon Johncock
15 October 6 Texas 200 mi (km) Texas World Speedway College Station , Texas Mario Andretti Gary Bettenhausen

Question: In the 1973 USAC Championship Car season, where is winning driver Bill Vukovich II?