Check this link out; it's a long gone vehicle, but this pic was taken in 1992. A Mack railtruck with maybe a modified speeder cab.....Fairmont?
No experience with Lionel or others speeders. Are they single axle drive, or like a geared diesel truck? The ideas are startin'..........
That's a very cool little speeder, someone should model that one!
The Lionel speeders have a single axle drive with one traction tire. Truthfully, I wish they had left the traction tire off, as it's not needed, and when you run over insulated rail sections, sometimes you only have one wheel with power.
These are cool, would like to try one in S. Need to do some investigating to find a power truck, TMCC would be a bonus.
Ray