The following are the Dip Switch settings based off of MAME 0.180 source code.
 
Use this information at your own risk!  The information was parsed from the MAME source code and could contain errors as to the state, order or descriptions of what the switches do.  If you find an error, please let me know on the Contact Us form and I will work on correcting the issue. 
 
 
 
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Manufactured by Namco, Released in 1992
ROM Version: Final Lap 3 (bootleg)
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Dip Switch:MCUB
12345678FunctionOption
Off       PortB 0x01H*
On       L
 On      Car Type(A)Lotus/March
 Off      McLaren/Williams*
Dip Switch:MCUH
12345678FunctionOption
Off       PortH 0x01H*
On       L
 Off      Automatic Car SelectNo*
 On      Yes
  Off     PortH 0x04H*
  On     L
   Off    Enable Onscreen DiagnosticsNo*
   On    Yes
    Off   PortH 0x10H*
    On   L
      Off PortH 0x40H*
      On L
       OnCar Type(B)McLaren/March
       OffWilliams/Lotus*
ROM Version: Final Lap 3 (Japan - Rev C)
Print
Dip Switch:MCUB
12345678FunctionOption
Off       PortB 0x01H*
On       L
 On      Car Type(A)Lotus/March
 Off      McLaren/Williams*
Dip Switch:MCUH
12345678FunctionOption
Off       PortH 0x01H*
On       L
 Off      Automatic Car SelectNo*
 On      Yes
  Off     PortH 0x04H*
  On     L
   Off    Enable Onscreen DiagnosticsNo*
   On    Yes
    Off   PortH 0x10H*
    On   L
      Off PortH 0x40H*
      On L
       OnCar Type(B)McLaren/March
       OffWilliams/Lotus*
ROM Version: Final Lap 3 (Japan)
Print
Dip Switch:MCUB
12345678FunctionOption
Off       PortB 0x01H*
On       L
 On      Car Type(A)Lotus/March
 Off      McLaren/Williams*
Dip Switch:MCUH
12345678FunctionOption
Off       PortH 0x01H*
On       L
 Off      Automatic Car SelectNo*
 On      Yes
  Off     PortH 0x04H*
  On     L
   Off    Enable Onscreen DiagnosticsNo*
   On    Yes
    Off   PortH 0x10H*
    On   L
      Off PortH 0x40H*
      On L
       OnCar Type(B)McLaren/March
       OffWilliams/Lotus*
ROM Version: Final Lap 3 (World, set 1)
Print
Dip Switch:MCUB
12345678FunctionOption
Off       PortB 0x01H*
On       L
 On      Car Type(A)Lotus/March
 Off      McLaren/Williams*
Dip Switch:MCUH
12345678FunctionOption
Off       PortH 0x01H*
On       L
 Off      Automatic Car SelectNo*
 On      Yes
  Off     PortH 0x04H*
  On     L
   Off    Enable Onscreen DiagnosticsNo*
   On    Yes
    Off   PortH 0x10H*
    On   L
      Off PortH 0x40H*
      On L
       OnCar Type(B)McLaren/March
       OffWilliams/Lotus*
ROM Version: Final Lap 3 (World, set 2)
Print
Dip Switch:MCUB
12345678FunctionOption
Off       PortB 0x01H*
On       L
 On      Car Type(A)Lotus/March
 Off      McLaren/Williams*
Dip Switch:MCUH
12345678FunctionOption
Off       PortH 0x01H*
On       L
 Off      Automatic Car SelectNo*
 On      Yes
  Off     PortH 0x04H*
  On     L
   Off    Enable Onscreen DiagnosticsNo*
   On    Yes
    Off   PortH 0x10H*
    On   L
      Off PortH 0x40H*
      On L
       OnCar Type(B)McLaren/March
       OffWilliams/Lotus*
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