The battery-powered concept car, which swaps the traditional steel body for lighter carbon fiber, gives some clues about where BMW is going with its first electric car. BMW says the concept car can go 80 to 100 miles on a battery charge. It has a 170 horsepower electric motor and is rear-wheel drive. Battery cells are under the floor, lowering the car’s center of gravity for better handling. The cell around the passengers is made of carbon fiber reinforced plastic. No word on when the car will come to showrooms.