I currently have about 6 going. Most are in the beginning stages. My post apoc kenworth is a major project. Extending the sleeper, frame, adding extra fuel tanks etc. I basically try to work on a different one every day. Helps me keep interest in them. Unless of course I get on a roll with one.
I still dream of modern truck models, like, 06 dodge ram mega cab with the cummins, crew cab chevies with the duramax, or even some of the newer fords with 7.3's or even the 6.4's. >_< I have an obsession with duallies...
And engine is a mechanical device that uses a fuel source to create an output. A motor converts electricity or other forms of kinetic energy into a mechanical motion. It really only matters on the person you're talking to. Either way it gets the point across really.
Junkman, if I ever come across 4.5m, i may take you up on that offer. Hehe.