Race in Any Country
Select UK on the course selection screen, then enter VALHALLA as a password.

Passwords

Country        Amateur      Pro          Champion  
S. America     MOONBATH     FOUR_MEG     EDUCATED  
Japan          GEARBOX_     LEGEND__     OILCLOTH  
Germany        CAR_PARK     THEWORLD     WRECKAGE  
Scandinavia    ROAD_HOG     LETSRACE     CARACOLE  
France         EMULATOR     ALCHEMY_     EPYLLION  
Italy          ANALYSER     A_LOOPER     GLUCAGON  
UK             HORIZONS     SEASONAL     KEELSON_