BMW's new electric car travels 428 miles per charge

BMW introduced the iX4 50 xDrive, its third Neue Klasse electric car. It runs up to 428 miles per charge in U.S. testing, from a big 112 kWh battery — kWh means energy stored — using newer battery cells built into the body to add strength. Its faster 800-volt charging fills 10 to 80 percent in 21 minutes.