For Automotive I came up with a unit that I believe to be fantastic. The unit consist of buying, selling and transferring a car, along with what to do before a road trip and what to bring.
I could also build on the unit and add what to look for when buying a used vehicle. Give the students a few scenarios to work on in class and have verbal exams.
Being in Northern British Columbia it is important to make sure the vehicle is maintained and the proper tools are available. Sometimes there is no phone service and not very many people on the highways.