1991 season statistics:

Drivers with the most wins:

1.  Doug Polen (17)

2.  Roberto Ravaglia (10)

3.  Luca Cadalora (8)

4.  Marc Goossens (8)

5.  John Fergus (8)

6.  Parker Johnstone (8)

7.  Michael Andretti (8)

8.  Ayrton Senna (7)

9.  Juha Kankkunen (7)

10.  Kelvin Burt (7)

Full list of winners

Nations with the most wins:

1.  United States (169)

2.  United Kingdom (121)

3.  Italy (100)

4.  Germany (96)

5.  France (59)

6.  Belgium (40)

7.  Brazil (36)

8.  Japan (24)

9.  Spain (22)

10.  Sweden (21)

Full list of winners

Constructors with the most wins:

1.  Ralt (56)

2.  Honda (43)

3.  Reynard (43)

4.  Ford (38)

5.  BMW (38)

6.  Swift (38)

7.  Lola (32)

8.  Porsche (28)

9.  Ducati (27)

10.  Lancia (23)

Full list of winners