Today’s shirt dates from late 2001 to 2002 season of Conquest Racing in the IRL Racing league. 2002 being the last year of the IRL was Conquest’s only year in the series. Owned by Éric Bachelart, Conquest ran an Oldsmobile powered Dallara driven by Laurent Redon .
The team ran its first IRL races in the last two races of 2001. They then ran the 15 races and finished 12th in the points in 2002 and Redon was awarded rookie of the year. After that, Laurent returned to France to compete in various endurance series.
I am assuming the shirt is from the 2001 season last two races as my shirt shows Oldsmobile power. I see in 2002 the team ran Infinity power.
This leads to an interesting story and read as legendary master engine builder Ed Pink ran the underfunded Infinity IRL racing engine program during those years. Learn about Ed here.