The article compares battery electric cars and fuel cell electric cars to see which type is better for different numbers of passengers. The study looked at how far each type of car can go on a single charge and how much energy they use. Fuel cell cars could go over 600 km on different drives, while battery electric cars averaged around 350 km. Fuel cell cars were cheaper to run, costing less than 7 cents per kilometer, while battery electric cars cost more than 10 cents/km for light cars. For buses and trucks with full loads, fuel cell power was cheaper at around 1.2 euros/km, while battery power was over 300 euros per kilometer. So, the study found that fuel cell cars can go farther and cost less to operate, especially for bigger vehicles with more passengers or cargo.