Benny Parson:
Choose the Richmond track, highlight the "Select Car" option, then quickly 
press Right(2), Z(2), Left(2), C-Up(2), C-Down(2). A sound will confirm 
correct code entry. 

Cale Yarborough:
Choose the Darlington track, highlight the "Select Car" option, then 
quickly press C-Up, C-Left, C-Down, C-Right, C-Up, C-Left, C-Down, C-Right, 
Z(2). 

Davey Allison:
Choose the Talladega track, highlight the "Select Car" option, then quickly 
press C-Up, C-Down, C-Left, C-Right, C-Up, C-Down, C-Left, C-Right, Z(2). 

Alan Kulwicki:
Choose the Bristol track, highlight the "Select Car" option, then quickly 
press Left, Right, C-Up(2), C-Down(2), C-Left(2), C-Right(2). 

David Parson:
Choose the Martinsville track, highlight the "Select Car" option, then 
quickly press Left, Z, Right, C-Right, C-Down, C-Left, C-Up, C-Right, Z(2). 

Bobby Allison:
Choose the Charlotte track, highlight the "Select Car" option, then quickly 
press C-Up, C-Right, C-Down, C-Left, C-Down, C-Right, C-Up, C-Right, L, R. 

Auto-pilot:
Press L during game play. 

Universal car configuration:
The following configuration works well on just about every track. 

Wheel lock: 17
Tires: 20 front, 40 back
Shocks: 100 all
Wedge: 52
Left bias: 0
Rear bias: 0
Transmission: 4579 

Short tracks (Bristol, Martinsville, and Richmond)
Spoiler: 50-60
Transmission: 7788 
Medium tracks (Rockingham, Phoenix, Miami, Vegas, Darlington, Charlotte, 
               Atlanta, Texas)
Spoiler: 35-40
Transmission: 7789 

Superspeedways (Talladega, California, Michigan, Pocono, Indianapolis) 
Spoiler: 30
Transmission: 9999 
Road courses (Sears Point, Watkins Glen, Arkansas, Dakota, Salt Lake, 
              Seattle, Lakeshore)
Spoiler: 45-55
Transmission: 7789 or 8889