Question: Who won 18 races driving Watson cars and an American race driver with 26 victories in top echelon open-wheel racing?
Sentence (from "A. J. Watson"): A. J. Watson (May 8, 1924 – May 12, 2014) was a car builder and chief mechanic from 1949 through 1984 in the Indianapolis 500, winning the race six times as a car builder.
Relevant evidence: No