Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The car in a dream indicates progress in the world. Its beauty and speed indicate the good state of the dreamer and the speed of achieving his wishes. An accident indicates difficulty in matters.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
The car indicates a wife, travel, or a position. Riding it indicates high status and honor.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The car is interpreted as worry. Whoever sees himself ride it will be afflicted with worry.