By Hugh A. Hornstein, Michigan on Monday, July 18, 2005 - 08:32 am:
For what it is worth, the 1940 AARR/M&LS RR Locomotive Equipment diagram book of January 1940, issued by the "Supt. Motive Power Decatur, Ill." identifies this as "M. & L. S. R.R. Buick Motor Car No. 2F 6 cylinder Built 1923".
Unfortunately, it does not identify the car or engine serial numbers, or horse power, as it does for the other motor car, a Dodge built in 1922, which was numbers 3F.
Hugh in Muskegon