(1) Added two new maps.

(2) Added brake pedal sound.

(3) Added crash sound.

(4) Optimized car No. 2.

(5) Added a sound effect to the store purchase button.

(6) Replace two slow-paced music with fast-paced music.

(7) Optimized the sound system.

(8) Optimized the decal position of car No. 2.