> People don't want to buy cars because they're low-emission, they want to buy cars because they're fast, big, and safe You forgot the two biggest factors - co

> People don't want to buy cars because they're low-emission, they want to buy cars because they're fast, big, and safe You forgot the two biggest factors - cost and efficiency. Most people doesn't want big or necessarily fast cars. Most people want cheap cars that go a long way on a little fuel. However, it's difficult to make cars that are cheap AND fuel efficient AND environmentally friendly.