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

Mercedes-Benz Arocs, 310 kW, 8x4 rigid lorry vs Scania P 420 B8x4

Mercedes-Benz Arocs, 310 kW, 8x4 rigid lorry

2014–2023 · 310 kW
42.6l/100 km
median; 42.6–45.9 across 2 declared configurations

Scania P 420 B8x4

2022–2023 · 309 kW
41.7l/100 km
median; 40.4–41.9 across 5 declared configurations
Mercedes-Benz Arocs, 310 kW, 8x4 rigid lorry and Scania P 420 B8x4 side by side
SpecificationMercedes-Benz Arocs, 310 kW, 8x4 rigid lorryScania P 420 B8x4
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration8×4Declared8×4Declared
Registered new2014–2023Registeredcentral 90% of records2022–2023Registeredcentral 90% of records
Engine power310 kWDeclared309 kWDeclared
Engine displacement12.8 litresDeclared12.7 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO 6, EURO VI A, EURO VI C, EURO VI D, EURO VI ERegisteredNot recorded
Gross vehicle weight35,000–44,000 kgRegisteredmedian 41,000 kg, over 49 registrations36,000–50,000 kgDeclaredmedian 39,000 kg, across 28 declared configurations
Kerb weight13,560–33,400 kgRegisteredmedian 15,665 kg, over 49 registrationsNot recorded
Wheelbase5,600–7,500 mmRegisteredmedian 5,900 mm, over 49 registrationsNot recorded
Overall length8,460–12,000 mmRegisteredmedian 8,970 mm, over 49 registrationsNot recorded
Overall height3,550–4,000 mmRegisteredmedian 3,850 mm, over 4 registrationsNot recorded
Declared fuel, construction42.6 l/100 km Declaredmedian; 42.6–45.9 l/100 km across 2 declared configurations41.7 l/100 km Declaredmedian; 40.4–41.9 l/100 km across 5 declared configurations
CO₂ per tonne-km86.35 g Declaredmedian; 86.35–93.1 g84.49 g Declaredmedian; 81.99–84.94 g

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

What the numbers actually say

There is 0.9 l/100 km between these two (2.1%). 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 1,080 litres a year (£1,512). The declared figures for one of them alone span 3.3 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

Arocs, 310 kW, 8x4 rigid lorry full specificationP 420 B8x4 full specification

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Arocs, 310 kW, 8x4 rigid lorry51,120 litres
£71,568 at the assumed price
Scania P 420 B8x450,040 litres
£70,056 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.