They aren't what most in the West would call "cars". Inexpensive and primative with lead acid batteries, no real safety features, and top speeds of under 40mph. What is probably important is a new class of manufacturer has sprung up and the segment is growing. If urban areas were to limit speeds to 20 to 30 mph as is the case in some European countries they could become much more important. They may become important in third world use.