If you plan to buy an electric car, you should do it this month

2017 Nissan Leaf  Common wisdom has it that the last few days of any calendar year are the best time to buy a car. Not only are franchised dealers and their salespeople seeking to close out the month with a bang, but it's the end of a year and their allocation of cars next year can depend on how many they sell this year. In other words: bargains may be there for...