I must say that I'm of two minds about giving subsidies to those who can afford these cars. At the moment in Quebec you can get a rebate of up to $8000 on the purchase of a new one, and $600 toward installing a recharging station at your home. In Ontario, the new PC government is doing away with that province's subsidies which were considerably higher than Quebec's.
Unless the electricity to charge these vehicles comes from a "green" renewable source, like solar, wind or hydroelectric, there is very little environmental good coming from them since emissions from traditional generating plants are extremely CO2 intense. Furthermore, just adding more cars to the roads will not solve the other problems of our urban centers. Better, probably, to put money into public transportation, including inter-city buses and trains.
