I think a lot of it has to do with crash safety regulations. Several of the concept cars in the article have very low hoods and huge glass windows. Low hoods vi

I think a lot of it has to do with crash safety regulations. Several of the concept cars in the article have very low hoods and huge glass windows. Low hoods violate pedestrian safety regulations, and all that glass makes it very difficult to have the car strong enough to survive a crash. Also half of them have no mirrors.