[spacemanspif]

Do you use the vehicle to tow stuff? If not, take that hitch out and save the weight and headache that is causes with the belly pan.

x1000 on finishing the belly pan and closing up the openings.

With a full belly pan, you shouldn't need the air dam; if air is flowing smoothly under the car and not developing turbulence, you don't need to block it. Side skits could help keep air away from the leading edge of the back tire but a slopped spat could do the same. Looks up member "arcosine" and his build thread on aeromodding his Saturn SC...pay close attention to the treatments he makes to the front and back of the wheel wells.

Great job so far! If you want to get "hard core" you could always change the gears in the rear. But that would cost double if you have a 4 wheel drive model...