Grouillard arranged to drive with the Indy Regency Team in a Lola T92/00 for 1993 in the CART PPG World Series following Nigel Mansell in the series. His first race was the Indianapolis 500, where he did not qualify. After the 500, Grouillard showed consistency and had a reliable car finishing in eight out of 11 events with only one mechanical retirement at Michigan and a collision with Arie Luyendyk at Vancouver. Overall, Grouillard finished 28th overall taking four points.