A test vehicle is a car, truck or other type of motor vehicle that is specifically designed and built for testing purposes. It may be used to evaluate new technologies, components or systems before they are incorporated into production vehicles. Test vehicles can also be used by automotive engineers to conduct research on driving dynamics, safety features, emissions control, fuel efficiency and other performance aspects of a vehicle. These specialized vehicles often have advanced data acquisition systems that allow for detailed analysis of the test results. In short, a test vehicle is an essential tool in the development and improvement of automotive technology.