Is it time for automakers to get the fat out?

andre1969

Trains and those double tractor-trailers can be designed to carry vary loads, so this isn't rocket science. So you would oversize the engine a little for the drive section making it sporty, so it is adequate with the add-on. Or as I said you could have electric motor drive recharging from the engine in the rear wheels.

They also make truck tractors and railroad locomotives with varying amounts of power, mated to the task at hand. You're not going to use a rig designed to haul, say, 10 tons, to move a 40 ton load. And with trains, when the load gets too long, they have the option of adding another locomotive.