There are many synonyms for the phrase "trail car" depending on the context and the region where it is used. Common alternatives include "trailing vehicle," "chase car," "support car," or "sweep car." In the racing world, a "pace car" is often used to lead the competitors at the start of a race. A "follow car" or "tail car" is also used in some situations when a lead vehicle is required to guide a convoy or a group of hikers, bikers, or skiers through challenging trails or roads. No matter which term is used, the idea is to have a vehicle that supports or follows the main group for safety or logistical reasons.