(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.