Outside of Formula One, Irvine participated in his third consecutive 24 Hours of Le Mans as a substitute for the late Roland Ratzenberger, who died after crashing in qualifying for the 1994 San Marino Grand Prix, driving for SARD alongside Mauro Martini and Jeff Krosnoff. The team were leading with 90 minutes to go when a gearbox issue forced the car to slow, costing them victory. They finished second overall and first in the LMP1/C90 class.