Transportation needs to be electrified but if Chinese imports (and all other cars for that matter) don't ship with fully open software they should never hit Canadian soil.

China IS an adversarial country, they have interfered in our elections and economy, their telecomms equipment ships with back doors, they wage war on their neighbours, commit domestic genocide and capture resources by holding massive debts over developing nations.

It is a guarantee that their electric cars will ship with the ability to manipulate economies. A car with evil firmware could cause congestion during important days, like during elections. It could increase infrastructure costs by doing synchronized throttling up and down of charging. It could be used to track the location of individuals by asking as a distributed wireless sniffer. It could be used to track the activity of the Canadian armed forces by looking at traffic patterns on and round bases.

These "features" would be essentially free to implement and would be extremely difficult to detect, until they are deployed, unless Chinese EVs, and all other cars going forward, ship with software that can be fully inspected and audited. The earlier that this becomes a demand the easier it will be to implement.

And if you don't think this is an issue or even a possibility, millions of IoT devices have already become inadvertent bricks or had their performance degraded by companies going out of business or decided not to support "legacy" hardware. Doing it on purpose is trivial.