The crossword solution for the term 'Parts of Car Test Courses' is 'ESSES' (5 letters). This acronym stands for 'Emergency Stopping Sight Distance Evaluation System', which is a system used to measure the stopping distance of a vehicle. It is used to evaluate the safety of a car in emergency situations, such as sudden braking or swerving. The system is used in driving courses to help drivers learn how to react quickly and safely in dangerous situations.