A standard semi GVM is 43T, a B Double is 63T, 43% more. Rolling resistance is proportional (but not directly proportional) to weight, I don't know how much but say a B Double has 20% more rolling resistance than a standard semi. But about half the power required to push a loaded truck down the road at 100kmh is aerodynamic drag so the decrease in range will be roughly 10%. IMO that is slightly less range. Please feel free to improve on my figures remembering that the Tesla Semi has the lowest drag coefficient (0.36) of any prime mover in production in the world.
"& much less capacity due to GVM" The long range Tesla Semi battery weighs 5.9T but then you have to take off the weight of the ICE and transmission for a valid comparison. Tesla hasn't publicly revealed the weight of their bare semi but various sleuths have estimated it at just over 12T with a typical ICE prime mover coming in at around 10T so the best guess is a penalty of 2T for the Tesla Semis payload. Once again please feel free to improve on my figures but IMO 2T in a say 28T payload for a semi or a 45T payload for a B Double isn't much less capacity and it would also seem that the standard range Semi would have no payload reduction compared to an ICE prime mover.
