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

Mercedes-Benz Actros, 390 kW, 8x4 rigid lorry (2021–2023) vs Mercedes-Benz Arocs, 390 kW, 8x4 rigid lorry

Mercedes-Benz Actros, 390 kW, 8x4 rigid lorry (2021–2023)

2021–2023 · 390 kW
43.9l/100 km
median; 43.2–44.4 across 7 declared configurations

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
Mercedes-Benz Actros, 390 kW, 8x4 rigid lorry (2021–2023) and Mercedes-Benz Arocs, 390 kW, 8x4 rigid lorry side by side
SpecificationMercedes-Benz Actros, 390 kW, 8x4 rigid lorry (2021–2023)Mercedes-Benz Arocs, 390 kW, 8x4 rigid lorry
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration8×4Declared8×4Declared
Registered new2021–2023Registeredcentral 90% of records2018–2024Registeredcentral 90% of records
Engine power390 kWDeclared390 kWDeclared
Engine displacement12.8 litresDeclared12.8 litresDeclared
GearboxautomatedDeclaredautomated, manualDeclared
Emission classNot recordedEURO VI, EURO VI C, EURO VI D, EURO VI ERegistered
Gross vehicle weight28,000–37,000 kgDeclaredmedian 35,500 kg, across 14 declared configurations34,000–47,000 kgRegisteredmedian 37,000 kg, across 2 type-approval versions and 57 records without one
Kerb weightNot recorded14,600–28,730 kgRegisteredmedian 24,360 kg, over 59 registrations
WheelbaseNot recorded5,590–7,200 mmRegisteredmedian 6,900 mm, over 59 registrations
Overall lengthNot recorded8,350–11,100 mmRegisteredmedian 10,700 mm, over 59 registrations
Overall heightNot recorded3,600–4,000 mmRegisteredmedian 3,930 mm, over 29 registrations
Declared fuel, construction43.9 l/100 km Declaredmedian; 43.2–44.4 l/100 km across 7 declared configurations45.5 l/100 km Declaredmedian; 42.5–47.7 l/100 km across 51 declared configurations
CO₂ per tonne-km88.96 g Declaredmedian; 87.62–90.1 g92.19 g Declaredmedian; 86.29–96.85 g

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

What the numbers actually say

There is 1.6 l/100 km between these two (3.6%). 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 5.2 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

Actros, 390 kW, 8x4 rigid lorry (2021–2023) full specificationArocs, 390 kW, 8x4 rigid lorry full specification

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Actros, 390 kW, 8x4 rigid lorry (2021–2023)52,680 litres
£73,752 at the assumed price
Mercedes-Benz Arocs, 390 kW, 8x4 rigid lorry54,600 litres
£76,440 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.