The first prototype was the sample AEV design. This design has two wings, with propellers, that push and pull the AEV down the track.
These sketches are each members own design of an AEV. After they were screened and scored, certain aspects of the drawings were brought together to come up with the current prototype design.
Unlike the first, the second prototype has one propeller on each side of the design. On works to push the AEV, while the other pulls. The Propeller on the front is moves down, allowing room for the battery underneath, and allowing the metal clip to be placed on top for the magnet.
The final design is similar to the last prototype, with a few design improvements. First, the team added a servo motor in order to add a power-braking system to the advanced energy vehicle. Along with this, the base pieces of the design were laser cut from ABS material. Not only is this a lightweight and durable material, it is also incredibly cheap.