I am going to make a Velomobile. I have built 5 different recumbent trikes. Now I am going to take one of my trikes and build an airodynamic shell around it to make a velomobile.
Here is the official definition of a velomobile.
Velomobile: A velomobile or bicycle car is a human-powered vehicle, enclosed for aerodynamic advantage and protection from weather and collisions. They are derived from recumbent bicycles and tricycles, with the addition of a full fairing (aerodynamic shell).