Comparison · 6×4 tractor unit · long haul at 19.3 t

Mercedes-Benz Actros, 460 kW, 6x4 tractor unit vs Scania S 660 A6x4

Mercedes-Benz Actros, 460 kW, 6x4 tractor unit

2020–2023 · 460 kW
39.4l/100 km
median; 35.8–44.8 across 81 declared configurations
Lower declared fuel

Scania S 660 A6x4

2022–2025 · 485 kW
33.9l/100 km
median; 31–41.9 across 53 declared configurations
Mercedes-Benz Actros, 460 kW, 6x4 tractor unit and Scania S 660 A6x4 side by side
SpecificationMercedes-Benz Actros, 460 kW, 6x4 tractor unitScania S 660 A6x4
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×4Declared6×4Declared
Registered new2020–2023Registeredcentral 90% of records2022–2025Registeredcentral 90% of records
Engine power460 kWDeclared485 kWDeclared
Engine displacement15.6 litresDeclared16.4 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI A, EURO VI D, EURO VI ERegisteredEURO VI, EURO VI ERegistered
Gross vehicle weight26,000–33,000 kgRegisteredmedian 33,000 kg, across 4 type-approval versions and 9 records without one28,000–36,000 kgRegisteredmedian 30,000 kg, across 6 type-approval versions and 9 records without one
Kerb weight9,688–10,980 kgRegisteredmedian 10,105 kg, over 13 registrations10,155–10,865 kgRegisteredmedian 10,545 kg, over 23 registrations
Wheelbase4,650–4,900 mmRegisteredmedian 4,750 mm, over 13 registrations4,500–5,300 mmRegisteredmedian 4,700 mm, over 23 registrations
Overall length6,850–7,300 mmRegisteredmedian 7,000 mm, over 13 registrations6,800–7,560 mmRegisteredmedian 6,910 mm, over 23 registrations
Overall height3,000–4,000 mmRegisteredmedian 3,960 mm, over 11 registrations3,770–4,000 mmRegisteredmedian 3,990 mm, over 22 registrations
Declared fuel, long haul39.4 l/100 km Declaredmedian; 35.8–44.8 l/100 km across 81 declared configurations33.9 l/100 km Declaredmedian; 31–41.9 l/100 km across 53 declared configurations
CO₂ per tonne-km53.37 g Declaredmedian; 48.48–60.8 g45.9 g Declaredmedian; 42.08–56.82 g

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

What the numbers actually say

The Scania S 660 A6x4 declared 5.5 l/100 km less (16.2%) on the long haul at 19.3 t, 2022 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 6,600 litres a year, or £9,240. A gap this size is outside the 10% tolerance of declared figures.

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Actros, 460 kW, 6x4 tractor unit47,280 litres
£66,192 at the assumed price
Scania S 660 A6x440,680 litres
£56,952 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.