Though bicycles have many advantages over automobiles—they are less expensive, more energy-efficient, and easier to maintain—they offer little protection from the elements. For some people, this disadvantage makes bicycles impractical for daily use. Enter the bicycle car, also known as the velomobile. Similar to a recumbent bicycle, the velomobile boasts an aerodynamic shell that offers the potential for added speed and protection from bad weather. Why do some velomobiles have parachutes? Discuss