Tesla Motors’ all-electric sedan was picked best overall car by Consumer Reports today. The Model S was praised for design, quality of construction, and ease of use. The selection is a measure of how quickly electric cars could spread once there is an engineering solution for the price of batteries. For now, with a price tag above $80,000, mostly a reflection of the cost of the battery, the Model S is no more than a nice idea as far as the average driver is concerned.