Chilton Library offers an online repair and maintenance instructions on thousands of cars, trucks, and van models. Information includes wiring diagrams, close up photographs, and illustrations. It includes Automotive Service Excellence (ASE) Technician Test Preparation (TTP) quizzes.
Driving-Tests.org is a website for learners who want to practice their skills before taking the real DMV permit test. The site provides practice tests for every state in the U.S.
fueleconomy.gov - the official U.S. government source for fuel economy information.