Comparison · 4×2 lorry · long haul at 14 t
Iveco S-Way, 251 kW, 4x2 rigid lorry vs Mercedes-Benz Arocs, 260 kW, 4x2 rigid lorry
Iveco S-Way, 251 kW, 4x2 rigid lorry
2022–2023 · 251 kW
37.3l/100 km
median; 31.3–43.8 across 42 declared configurations
Mercedes-Benz Arocs, 260 kW, 4x2 rigid lorry
2020–2023 · 260 kW
34.1l/100 km
median; 32.2–39.7 across 28 declared configurations
What the numbers actually say
There is 3.2 l/100 km between these two (9.3%). That is inside the 10% tolerance of declared figures, so on fuel alone neither is the better choice: at 120,000 km a year and an assumed £1.40 a litre the gap would be about 3,840 litres a year (£5,376). The declared figures for one of them alone span 12.5 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.
Fuel over a year
120,000 km · assumed priceIveco S-Way, 251 kW, 4x2 rigid lorry44,760 litres
£62,664 at the assumed price
Mercedes-Benz Arocs, 260 kW, 4x2 rigid lorry40,920 litres
£57,288 at the assumed price
At 120,000 km a year and an assumed £1.40 a litre; the price is an assumption, not one we track.