The i3 really grabbed my attention because the chassis is built out of a strong carbon fiber reinforced plastic that weights 1/2 the weight of steel. They know what I have known for a long time now; less weight requires less energy to move it. I have done everything that I know how to reduce weight in my own car. Every component has weight and almost everything can be made lighter. Many people have the idea that weight does not matter because the car is rolling on wheels. Every good engineer knows that the opposite is true; the car can be built light with aluminum, carbon fiber, or Kevlar. The battery and motor should also be as light as possible. Batteries with the highest energy density will reduce weight, reduce charge time, and extend range. I like many aspects of the BMW i3 but, the price is too heavy for me. We also need a car that we can afford. This last point is why I think that the Chevy Bolt will be a winner with a longer range and a lower price tag.