Comparison · 4×2 lorry · long haul at 14 t

Mercedes-Benz Actros, 375 kW, 4x2 rigid lorry vs Scania S 520 B4x2

Mercedes-Benz Actros, 375 kW, 4x2 rigid lorry

2020–2023 · 375 kW

33.8l/100 km

median; 29.7–40.4 across 27 declared configurations

Scania S 520 B4x2

2018–2021 · 382 kW

31.3l/100 km

median; across 1 declared configurations

Mercedes-Benz Actros, 375 kW, 4x2 rigid lorry and Scania S 520 B4x2 side by side
Specification	Mercedes-Benz Actros, 375 kW, 4x2 rigid lorry	Scania S 520 B4x2
Vehicle form	Lorry (BA)Registered	Lorry (BA)Registered
Axle configuration	4×2Declared	4×2Declared
Registered new	2020–2023Registeredcentral 90% of records	2018–2021Registeredcentral 90% of records
Engine power	375 kWDeclared	382 kWDeclared
Engine displacement	12.8 litresDeclared	16.4 litresDeclared
Gearbox	automatedDeclared	automatedDeclared
Emission class	Not recorded	EURO VI C, EURO VI DRegistered
Gross vehicle weight	18,000–20,500 kgDeclaredmedian 18,000 kg, across 81 declared configurations	18,600–22,000 kgRegisteredmedian 21,000 kg, over 5 registrations
Kerb weight	Not recorded	9,935–13,873 kgRegisteredmedian 13,470 kg, over 5 registrations
Wheelbase	Not recorded	5,350–6,750 mmRegisteredmedian 6,750 mm, over 5 registrations
Overall length	Not recorded	9,180–12,000 mmRegisteredmedian 11,950 mm, over 5 registrations
Overall height	Not recorded	4,000 mmRegistered
Declared fuel, long haul	33.8 l/100 km Declaredmedian; 29.7–40.4 l/100 km across 27 declared configurations	31.3 l/100 km Declaredmedian; across 1 declared configuration
CO₂ per tonne-km	63.2 g Declaredmedian; 55.51–75.5 g	58.4 g Declaredmedian

Fuel and CO₂: long haul at 14 t, 2022 declarations.

What the numbers actually say

There is 2.5 l/100 km between these two (7.9%). 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 3,000 litres a year (£4,200). The declared figures for one of them alone span 10.7 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

Actros, 375 kW, 4x2 rigid lorry full specification S 520 B4x2 full specification The fuel ranking

Fuel over a year

120,000 km · assumed price

Mercedes-Benz Actros, 375 kW, 4x2 rigid lorry40,560 litres

£56,784 at the assumed price

Scania S 520 B4x237,560 litres

£52,584 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.