Electric Vehicle choices keep getting more compelling, and Mercedes-Benz is doing its part by unveiling the upcoming B-Class Electric Drive. The B-Class is among the smaller of MB's cars (one step up from the A-Class), fitting squarely in the MPV category. It's basically a mini-minivan. MPVs are small but big enough to be practical, and they tend to be economical. The fully electric powertrain in this 2014 model that just rolled onto the stage here at the New York International Auto Show should go a long way in that regard. Follow us after the break for more details and some photos.