AllTruckData
Comparison · 8×4 lorry · construction at 12.9 t

Mercedes-Benz Arocs, 390 kW, 8x4 rigid lorry vs Scania R 540 B8x4*4, lorry (2020–2023)

Mercedes-Benz Arocs, 390 kW, 8x4 rigid lorry

2018–2024 · 390 kW
45.5l/100 km
median; 42.5–47.7 across 51 declared configurations

Scania R 540 B8x4*4, lorry (2020–2023)

2020–2023 · 397 kW
41.4l/100 km
median; 38.9–44.9 across 81 declared configurations
Mercedes-Benz Arocs, 390 kW, 8x4 rigid lorry and Scania R 540 B8x4*4, lorry (2020–2023) side by side
SpecificationMercedes-Benz Arocs, 390 kW, 8x4 rigid lorryScania R 540 B8x4*4, lorry (2020–2023)
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration8×4Declared8×4Declared
Registered new2018–2024Registeredcentral 90% of records2020–2023Registeredcentral 90% of records
Engine power390 kWDeclared397 kWDeclared
Engine displacement12.8 litresDeclared12.7 litresDeclared
Gearboxautomated, manualDeclaredautomatedDeclared
Emission classEURO VI, EURO VI C, EURO VI D, EURO VI ERegisteredNot recorded
Gross vehicle weight34,000–47,000 kgRegisteredmedian 37,000 kg, across 2 type-approval versions and 57 records without one33,000–42,000 kgDeclaredmedian 34,000 kg, across 355 declared configurations
Kerb weight14,600–28,730 kgRegisteredmedian 24,360 kg, over 59 registrationsNot recorded
Wheelbase5,590–7,200 mmRegisteredmedian 6,900 mm, over 59 registrationsNot recorded
Overall length8,350–11,100 mmRegisteredmedian 10,700 mm, over 59 registrationsNot recorded
Overall height3,600–4,000 mmRegisteredmedian 3,930 mm, over 29 registrationsNot recorded
Declared fuel, construction45.5 l/100 km Declaredmedian; 42.5–47.7 l/100 km across 51 declared configurations41.4 l/100 km Declaredmedian; 38.9–44.9 l/100 km across 81 declared configurations
CO₂ per tonne-km92.19 g Declaredmedian; 86.29–96.85 g84.04 g Declaredmedian; 78.93–91.1 g

Fuel and CO₂: construction at 12.9 t, 2022 declarations.

What the numbers actually say

There is 4.1 l/100 km between these two (9.9%). 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 4,920 litres a year (£6,888). 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.

Arocs, 390 kW, 8x4 rigid lorry full specificationR 540 B8x4*4, lorry (2020–2023) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Arocs, 390 kW, 8x4 rigid lorry54,600 litres
£76,440 at the assumed price
Scania R 540 B8x4*4, lorry (2020–2023)49,680 litres
£69,552 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.