Here are some links I hope you might be interested in.
If you know of a site that you think others would like please send me an email and let me know about it.
www.riv.ca - Registrar of Imported Vehicles. Site when importing a vehicle to Canada
www.mto.gov.on.ca - When Buying a Used Vehicle in Ontario
www.tc.gc.ca - Transport Canada Site of allowed vehicles for import to Canada