Maxwells, I believe. Six per car?
I agree with the honored Keith Townsend. It appears to be mostly 2 cylinders and perhaps 1, 4 cylinder. The piles in front appear to be wrapped top assemblies.
Possibly this is their arrival and unloading process. It would seem too sparse to be at the factory.
Can you just imagine someone calling you and asking if you could meet them at the rail yard, and help drive some "new" automobiles to the dealership? Did they all get a quickie driving lesson?
The logistics in becoming a "new" dealer must have been daunting. Raising the money, finding a location, visiting an auto show to determine which car you wanted to represent. Then the "order". Waiting for the arrival and the excitement of unloading and getting ready for the drive to the new dealership.
If this was the 1'st order can you just imagine the excitement and local interest and nerves? I'm guessing most country folks had never actually seen an automobile let alone actually driving up and down the road.