Why is eco-driving (vorausschauende Fahrweise) particularly impactful in heavy commercial vehicles over 3.5 tonnes?

1. Because heavy trucks run on vegetable oil only
2. Eco-driving makes the truck travel at twice the speed limit
3. Eco-driving has zero financial or environmental effect on heavy freight transport
4. Because a 40-tonne truck requires immense energy to accelerate from standstill, smooth anticipation, rolling in gear (Schubabschaltung), maintaining steady momentum, and avoiding harsh braking can save up to 10–15% in fuel (thousands of liters of diesel per year) and drastically reduce brake wear and CO2 emissions