Every year, there are many Canadians who purchase used cars from the United States. The reasons Canadians buy a used car from the US can include: they found a car at a cheaper price, they located a specialty car that cannot be found in Canada, or they are buying a used car from a private seller. If you are planning to buy a used car from the US and bring it to Canada, it is important to understand what the process involves so you do not get held up at the border crossing.