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

Mercedes-Benz Arocs, 425 kW, 8x4 rigid lorry vs Scania R 660 B8x4

Mercedes-Benz Arocs, 425 kW, 8x4 rigid lorry

2017–2023 · 425 kW
47l/100 km
median; 45.2–49.3 across 10 declared configurations

Scania R 660 B8x4

2022–2023 · 485 kW
43.4l/100 km
median; 40.9–47.3 across 21 declared configurations
Mercedes-Benz Arocs, 425 kW, 8x4 rigid lorry and Scania R 660 B8x4 side by side
SpecificationMercedes-Benz Arocs, 425 kW, 8x4 rigid lorryScania R 660 B8x4
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration8×4Declared8×4Declared
Registered new2017–2023Registeredcentral 90% of records2022–2023Registeredcentral 90% of records
Engine power425 kWDeclared485 kWDeclared
Engine displacement15.6 litresDeclared16.4 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO 6, EURO VI, EURO VI A, EURO VI C, EURO VI D, EURO VI ERegisteredNot recorded
Gross vehicle weight32,000–48,000 kgRegisteredmedian 37,000 kg, over 10 registrations35,000–60,000 kgDeclaredmedian 42,000 kg, across 66 declared configurations
Kerb weight13,778–30,615 kgRegisteredmedian 18,800 kg, over 10 registrationsNot recorded
Wheelbase5,630–7,200 mmRegisteredmedian 6,500 mm, over 10 registrationsNot recorded
Overall length8,700–11,500 mmRegisteredmedian 9,520 mm, over 10 registrationsNot recorded
Overall height3,650–3,900 mmRegisteredmedian 3,750 mm, over 3 registrationsNot recorded
Declared fuel, construction47 l/100 km Declaredmedian; 45.2–49.3 l/100 km across 10 declared configurations43.4 l/100 km Declaredmedian; 40.9–47.3 l/100 km across 21 declared configurations
CO₂ per tonne-km95.33 g Declaredmedian; 91.61–100 g87.9 g Declaredmedian; 82.9–95.9 g

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

What the numbers actually say

There is 3.6 l/100 km between these two (8.2%). 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 4,320 litres a year (£6,048). The declared figures for one of them alone span 6.4 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

Arocs, 425 kW, 8x4 rigid lorry full specificationR 660 B8x4 full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Arocs, 425 kW, 8x4 rigid lorry56,400 litres
£78,960 at the assumed price
Scania R 660 B8x452,080 litres
£72,912 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.