The rear panels received a similar treatment to the front end and a one piece rear end clamshell was also designed and fabricated. The rear fender flares and the side skirts/barge boards were fabricated from scratch of course. The driver really has to take a sizeable step to enter the car and get over the barge boards.
Here's another shot of the rear quarter and barge boards. This view shows the amount of detail in the barge board. Once again, it must have taken a huge amount of hours for all this detailed work. Notice the floor is cut out from where the rear passenger's butts would be and behind. More details on this later, but just know that a lot of trick equipment fills that space.
Here the first fiberglass piece pulled off the plug. Once again, the fiberglass part is used to visually check for clearances and could be cut up and modified at a lower cost than a carbon part. Note the Ginetta (a small British sports car) uprights that make a double A-arm suspension much easier to implement than designing and fabricating uprights from scratch.
Here is the one piece rear end completed before installation. Steel panels are no longer needed for the rear of the unibody with tubular rear chassis construction. The rear shock towers are still present as per WTAC Pro Class rules. Chris told me the car weighs only 935Kg or 2061 lbs.!!!
Here's the one piece rear end fit on to the car. Notice that the tunnels have not been fabricated at this point yet. Those would come later when the floor and other pieces were ready for the car.
The tunnels are in! The argument, within certain circles at least, are if tunnels or diffusers are more effective. I'm going to guess that tunnels are probably the way to go if Andrew chose them. By logical deduction, NEMO is Andrew's balls out proof of concept car so he is going to use the most efficient means of generating high levels of downforce on NEMO. While I'm sure the true answer is situational, I've never seen a simple diffuser on a prototype car either. Prototypes all have tunnels of some variety or other.