Re: U.S. Citizen w/ P.R. Status and final year Medical School Bought U.S. Car..
Yes, someone with Canadian PR status who lives in the US can drive their US plated car into Canada. However, it is not always clear what your legal "home" is and in some cases you could have legal residence in both countries, so it could get tricky at the border. If you have a US drivers' license that would be the best way to demonstrate your "home" is in the US. However, if you have been living in Canada for the past several years, you might have been legally required to get a Canadian license.