This is my understanding: Tesla has been approved to sell Model-X in Canada, but these are Canadian-specific Model-X (adhering to Transport Canada rules with daytime running lights, metric units, etc.) Tesla is refusing to provide an upgrade kit (US to Canada) for the Model-X, so US Model-X cannot legally be sold in Canada. However, there is no issue with Americans driving into Canada with their US Model-X. They just can't sell it here.