Experts are forecasting that electric truck sales will overtake diesel lorry sales by 2030 as the increased energy density of batteries allows the load haulers to travel longer distances on a single charge. Mercedes-Benz began selling its electric Freightliner semi-truck in the United States back in 2019. Five years later the maker recently unveiled its new Mercedes-Benz eActros 600 for Europe and beyond to an international audience at an event near Hamburg. Like electric cars, electron-sipping trucks are still evolving and progress does not come cheap. The lorry costs around 2.5 times as much…