The Need for Speed/Tracks

There are 15 tracks in the game, six of them are unlocked at the beginning of the game, one of them can be unlocked by completing tournaments, and eight of them can be unlocked by entering codes.

Closed Circuits

 * Rusty Springs
 * Autumn Valley
 * Vertigo

Open (Road) Circuits

 * City
 * Coastal
 * Alpine

Bonus Tracks
The rally tracks are unlocked by entering the same code as for the Lost Vegas track and by holding down certain buttons at the track selection screen. The rally tracks have a layer of dirt on the road that makes the cars handle differently. The Lunar Springs track is unlocked by entering a second secret code and holding certain buttons at the track selection screen while Rusty Springs is highlighted. The Lunar Springs track features low gravity to create distinctly different car handling.
 * Lost Vegas (unlocked after beating any tournament in Class A,B, or C)
 * Oasis Springs
 * Autumn Rally
 * Vertigo Rally
 * City Rally
 * Coastal Rally
 * Alpine Rally
 * Lost Rally
 * Lunar Springs