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

Mercedes-Benz Arocs, 375 kW, 8x4 rigid lorry vs Volvo FM, 375 kW, 8x4 rigid lorry (2018–2024)

Mercedes-Benz Arocs, 375 kW, 8x4 rigid lorry

2019–2025 · 375 kW
46.5l/100 km
median; 42.1–48.6 across 154 declared configurations

Volvo FM, 375 kW, 8x4 rigid lorry (2018–2024)

2018–2024 · 375 kW
43.1l/100 km
median; 37.7–47.9 across 98 declared configurations
Mercedes-Benz Arocs, 375 kW, 8x4 rigid lorry and Volvo FM, 375 kW, 8x4 rigid lorry (2018–2024) side by side
SpecificationMercedes-Benz Arocs, 375 kW, 8x4 rigid lorryVolvo FM, 375 kW, 8x4 rigid lorry (2018–2024)
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration8×4Declared8×4Declared
Registered new2019–2025Registeredcentral 90% of records2018–2024Registeredcentral 90% of records
Engine power375 kWDeclared375 kWDeclared
Engine displacement12.8 litresDeclared12.8 litresDeclared
Gearboxautomated, manualDeclaredautomated, automaticDeclared
Emission classEURO 6, EURO VI A, EURO VI C, EURO VI D, EURO VI ERegisteredEURO 6, EURO VI, EURO VI B, EURO VI C, EURO VI D, EURO VI ERegistered
Gross vehicle weight32,000–44,000 kgRegisteredmedian 37,000 kg, across 2 type-approval versions and 150 records without one35,000–46,000 kgRegisteredmedian 43,000 kg, over 120 registrations
Kerb weight13,321–27,775 kgRegisteredmedian 24,018 kg, over 152 registrations8,926–40,635 kgRegisteredmedian 17,430 kg, over 120 registrations
Wheelbase5,600–7,510 mmRegisteredmedian 6,900 mm, over 152 registrations5,660–9,600 mmRegisteredmedian 6,460 mm, over 120 registrations
Overall length8,500–11,850 mmRegisteredmedian 10,350 mm, over 152 registrations7,930–11,080 mmRegisteredmedian 9,160 mm, over 120 registrations
Overall height3,510–4,000 mmRegisteredmedian 3,820 mm, over 83 registrations3,070–4,000 mmRegisteredmedian 3,700 mm, over 61 registrations
Declared fuel, construction46.5 l/100 km Declaredmedian; 42.1–48.6 l/100 km across 154 declared configurations43.1 l/100 km Declaredmedian; 37.7–47.9 l/100 km across 98 declared configurations
CO₂ per tonne-km94.3 g Declaredmedian; 85.44–98.7 g87.5 g Declaredmedian; 76.54–97.1 g

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

What the numbers actually say

There is 3.4 l/100 km between these two (7.8%). 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 4,080 litres a year (£5,712). The declared figures for one of them alone span 10.2 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

Arocs, 375 kW, 8x4 rigid lorry full specificationFM, 375 kW, 8x4 rigid lorry (2018–2024) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Arocs, 375 kW, 8x4 rigid lorry55,800 litres
£78,120 at the assumed price
Volvo FM, 375 kW, 8x4 rigid lorry (2018–2024)51,720 litres
£72,408 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.