Comparison · 6×4 lorry · long haul at 19.3 t
MAN TGX 33.580 6x4, rigid lorry (2020–2023) vs Mercedes-Benz Arocs, 425 kW, 6x4 rigid lorry
MAN TGX 33.580 6x4, rigid lorry (2020–2023)
2020–2023 · 427 kW
40.7l/100 km
median; 38.2–44.2 across 13 declared configurations
Mercedes-Benz Arocs, 425 kW, 6x4 rigid lorry
2020–2023 · 425 kW
42.3l/100 km
median; 39.9–43.7 across 7 declared configurations
What the numbers actually say
There is 1.6 l/100 km between these two (3.9%). 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 1,920 litres a year (£2,688). The declared figures for one of them alone span 6 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 priceMAN TGX 33.580 6x4, rigid lorry (2020–2023)48,840 litres
£68,376 at the assumed price
Mercedes-Benz Arocs, 425 kW, 6x4 rigid lorry50,760 litres
£71,064 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.