Got it. Congratulations!!
You must provide a detailed list of everything that you are bringing with you in your car...including your car (separate process to import a vehicle). Some vehicles (older ones, primarily) may not be able to be imported; they must meet certain safety criteria like having daytime running lights, for example.
If you have anything that is not coming with you in your car, you will need to create the Goods to follow form. More info, here:
https://www.prepareforcanada.com/before-you-arrive/settling-in-canada/goods-to-follow-bringing-your-belongings-to-canada/
"Canada allows you to import your goods
from your home country duty-free only one time.
However, you may have to pay duty for products that you haven’t yet used. There are different criteria for settlers and tourists. In some cases, the Border Services Agent might require you to post a refundable security deposit. This is not heavily enforced and is mostly at the discretion of the border services agent."
If you are bringing goods from Detroit...and your home country is
not the U.S., you may have to pay some duty/tax, but it may be up to the CBSA officer to decide.