California Speed

Adjust fog color:
Select a non-series race. Hold L + R + C-Up + C-Down + C-Left + C-Right + Down when the screen fades and wait until the track selection screen has fully appeared. Then, press Right until an option to adjust the fog color appears.

Change screen position:
Hold L + R + Start on controller two and move the Analog-stick on that controller during a single player race.

Five-O car:
Successfully complete the Sport Series.
Information in this section was contributed by vlen.

Predator car:
Use the Five-Oh car to successfully complete the Sport Series.

Mano car:
Use the Predator car to successfully complete the Sport Series.

Semi truck:
Successfully complete the Do The State mode.
Information in this section was contributed by Danscodes.

Dozer truck:
Use the Semi truck to successfully complete the California Cup.
Information in this section was contributed by Danscodes.

Squirrel car:
Successfully complete the Light Series.
Information in this section was contributed by vlen.

Insect car:
Use the Squirrel car to successfully complete the Light Series.

Forklift car:
Use the Insect car to successfully complete the Light Series.

Mountain Dew pickup:
Successfully complete the Heavy Series.
Information in this section was contributed by vlen.

OL' truck:
Use the Mountain Dew pickup to successfully complete the Heavy Series.

Camper truck:
Use the OL' truck to successfully complete the Heavy Series.

Clover track:
Successfully complete the Sport Series week two.

Mt. Fuji track:
Successfully complete the Sport Series week three.

Oval track:
Successfully complete the Heavy Series week two.

San Andreas track:
Successfully complete the Heavy Series week three.
Information in this section was contributed by Danscodes.

California track:
Successfully complete the California Cup week five.

Mirrored series tracks:
Select practice mode and choose the mirrored version of any track. Once on the track, exit and begin a race in series mode. The series track will be the mirrored version.

Hint: Rush 2: Extreme Racing USA reference:
The Sled car is derived from the Mobster car in Rush 2: Extreme Racing USA.
Information in this section was contributed by Filbert Resurreccion.

Hint: Streets Of Rage reference:
The Five Oh car in its original colors (blue with a white door and roof section) is similar to the Lamborghini-styled police car in Streets Of Rage that can be called with a special attack to fire a rocket at any thugs.
Information in this section was contributed by CaliforniaDrifter.