the reason they are not legal in Ontario is because Ontario classifies trikes as motorcycles and to be a motorcycle it needs a seat you straddle, a handlebar (not a steering wheel) and separate break system for the front and back brake. Also it can't have a "cage" around the driver. To classify it as a car, then you need 5mph bumpers and a bunch of other things. This trike is neither a car or a motorcycle in Ontario.
http://www.mto.gov.on.ca/english/dandv/vehicle/emerging/motortricycles_faq.shtml
How about this then?
Kinda pointless if you could just get a bike though.