In our strained economic times, affordability has become the new watchword in the automotive marketplace. But affordability for the auto buyer in Oakland is not the same as it is for the car shopper in Piedmont. In a nutshell, this is why there are different classes of similar-sized cars at such varying prices. This month affordability in EV small cars arrives in two diverse packages—the revived Chevrolet Bolt and the brand-new Mercedes-Benz CLA.