Comparison · 4×2 tractor unit · long haul at 19.3 t

Mercedes-Benz Actros, 425 kW, 4x2 tractor unit vs Scania R 660 A4x2

Mercedes-Benz Actros, 425 kW, 4x2 tractor unit

2020–2023 · 425 kW
32l/100 km
median; 30.3–37.4 across 59 declared configurations

Scania R 660 A4x2

2021–2024 · 485 kW
29.5l/100 km
median; 27.6–32.1 across 92 declared configurations
Mercedes-Benz Actros, 425 kW, 4x2 tractor unit and Scania R 660 A4x2 side by side
SpecificationMercedes-Benz Actros, 425 kW, 4x2 tractor unitScania R 660 A4x2
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration4×2Declared4×2Declared
Registered new2020–2023Registeredcentral 90% of records2021–2024Registeredcentral 90% of records
Engine power425 kWDeclared485 kWDeclared
Engine displacement15.6 litresDeclared16.4 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI, EURO VI A, EURO VI ERegisteredEURO VI D, EURO VI ERegistered
Gross vehicle weight19,000–21,500 kgRegisteredmedian 19,500 kg, across 3 type-approval versions and 2 records without one19,000–23,000 kgRegisteredmedian 21,000 kg, across 21 type-approval versions and 3 records without one
Kerb weight7,865–8,875 kgRegisteredmedian 8,502 kg, over 5 registrations8,210–9,430 kgRegisteredmedian 8,689 kg, over 36 registrations
Wheelbase3,700–4,000 mmRegisteredmedian 3,850 mm, over 5 registrations3,750–3,950 mmRegisteredmedian 3,950 mm, over 36 registrations
Overall length6,120–6,500 mmRegisteredmedian 6,310 mm, over 5 registrations5,960–8,200 mmRegisteredmedian 6,160 mm, over 36 registrations
Overall height3,970–3,980 mmRegisteredmedian 3,970 mm, over 2 registrations3,460–4,000 mmRegisteredmedian 3,900 mm, over 34 registrations
Declared fuel, long haul32 l/100 km Declaredmedian; 30.3–37.4 l/100 km across 59 declared configurations29.5 l/100 km Declaredmedian; 27.6–32.1 l/100 km across 92 declared configurations
CO₂ per tonne-km43.44 g Declaredmedian; 41.09–50.7 g40.03 g Declaredmedian; 37.48–43.52 g

Fuel and CO₂: long haul at 19.3 t, 2022 declarations.

What the numbers actually say

There is 2.5 l/100 km between these two (8.4%). 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 7.1 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Actros, 425 kW, 4x2 tractor unit38,400 litres
£53,760 at the assumed price
Scania R 660 A4x235,400 litres
£49,560 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.