An eclectic A-B-B-A-A consist composed of TCRM's cab units and two NERR (ex-BNSF) B40-8Ws leads an excursion from Nashville to Cookeville on the former TC mainline.
Classic diesels such as EMD F-units and E-units embody the halcyon days of railroading in the United States, and they just plain look and sound awesome. Here are some personal favorites of the 'covered wagons' I've encountered.