1992 Bosch Spark Plug Grand Prix At Pennsylvania International Nazareth Indy Car

1988 Nazareth Raceway Bosch Spark Plug Grand Prix Indy Car Program

1990 Bosch Spark Plug Indy Grand Prix Pennsylvania Raceway Program

1997 Bosch Spark Plug Indy Grand Prix Pennsylvania Raceway Program

1995 Bosch Spark Plug Indy Grand Prix Pennsylvania Raceway Program

1996 Bosch Spark Plug Indy Grand Prix Pennsylvania Raceway Program

1987 Bosch Spark Plug Indy Grand Prix Pennsylvania Raceway Program

1991 Bosch Spark Plug Indy Grand Prix Pennsylvania Raceway Program