The Beginning of the next Custom

I think Diesel, Paxton, 'Arry, and Bert use a C-battery, and they all don't have siderods, so it's not a class 08.

The earlier versions did use C batteries, but Diesel was updated with the flat drive unit (as seen in the photo). Paxton was only released with the flat type, and the new 'Arry and Bert were the final TrackMaster engines released in the old syle (Ucwepn has both the C and AA versions). However, none of the Class 08 characters were ever released with "real" connecting rods.