Here are the cars in no particular order:

Alan and I checked out the cars and this is the report:

Body: I listed anything that appeared to be missing or damaged. Most damage was previously repaired. Alan glued an engine intake back onto one car.
Braids: I checked whether the braids were clean or dirty. I cleaned the brushes with a clean toothbrush with a ruler backing them up so they would not get flattened.
Front tires: I spun them to check for wobble and resistance. I will recheck the highlighted ones tomorrow to determine whether it is side-to-side (S2S) or vibration inducing. All of the axles turned (no dragging). One of them stopped immediately (#52) and a couple (#77 and #66) would spin a little more.
Rear tires: I spun them to check for side-to-side wobble and resistance. Any resistance noted appears to be motor feel, not binding. I did not have enough light to see any out-of-round wobble. The vibration check should cover that.
Vibration: I ran each car on a roller stand (at 10V) with a toothpick on top to determine the subjective amount of vibration. This needs to be taken with a grain of salt since the flat fronted cars did much better.
While doing the vibration check for the #9 car it slowed as I was adjusting the voltage indicating it was increasing its current draw (my train supply operates more as a constant current than constant voltage supply). We stopped the run and removed it. It had a bit of a smell as if it was overheating. There was no binding. We checked it again at the end of the checks and it was fine. It was also fine during the low speed lane checks. We will check it again before, during, and after qualification.We did not open any of the cars up. The cars that have "open" rear ends did not appear to have any significant build-up inside.
Alan and I ran each of the cars slowly around the track in each lane to ensure there was no binding. Thanks to one illegal guide (it sticks out beyond the front of the body) we found a couple of paint drops in the slots that were removed.
I will provide more feedback on the cars after qualification tomorrow.