basically all European diesels should be sold in Canada, disregard its emission standards: Euro4, Euro5, Euro6, CAFE-LEVII (Tier 2)... etc.
and don't forget Ford Falcon and Holden Commodore, altho the latter is gonna be sold as Pontiac G8. Toyota ist (now Scion xD) is also a good pick. Buy one from the States.
JDM Odyssey and Toyota Crown should also be in the list too!
...and if you dun mind the brand factor, the Malaysian Proton Waja/Impian is not a bad choice.