However, he briefly returned from retirement in 1998, entering the 1000 km Monza, and the opening race of the International Sports Racing Series (ISRS), driving for Centenari; he didn't start the 1000 km Monza, and finished sixth overall (second in the CN class) in the opening round of the ISRS.
In 1998, he briefly re-entered competition by participating in the 1000 km Monza and the ISRS opener for Centenari; although he did not start the 1000 km Monza race, he finished sixth overall (second in the CN class) in the series' first round.