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

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

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

2020–2023 · 460 kW
42.4l/100 km
median; 39.2–46.7 across 20 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 Arocs, 460 kW, 6x4 tractor unit and Scania S 660 A6x4 side by side
SpecificationMercedes-Benz Arocs, 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 6, EURO VI, EURO VI A, EURO VI ERegisteredEURO VI, EURO VI ERegistered
Gross vehicle weight32,200–33,000 kgRegisteredmedian 33,000 kg, across 1 type-approval version and 3 records without one28,000–36,000 kgRegisteredmedian 30,000 kg, across 6 type-approval versions and 9 records without one
Kerb weight10,071–11,055 kgRegisteredmedian 10,522 kg, over 4 registrations10,155–10,865 kgRegisteredmedian 10,545 kg, over 23 registrations
Wheelbase4,800–5,250 mmRegisteredmedian 4,950 mm, over 4 registrations4,500–5,300 mmRegisteredmedian 4,700 mm, over 23 registrations
Overall length7,060–7,510 mmRegisteredmedian 7,210 mm, over 4 registrations6,800–7,560 mmRegisteredmedian 6,910 mm, over 23 registrations
Overall height3,930 mmRegistered3,770–4,000 mmRegisteredmedian 3,990 mm, over 22 registrations
Declared fuel, long haul42.4 l/100 km Declaredmedian; 39.2–46.7 l/100 km across 20 declared configurations33.9 l/100 km Declaredmedian; 31–41.9 l/100 km across 53 declared configurations
CO₂ per tonne-km57.43 g Declaredmedian; 53.15–63.3 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 8.5 l/100 km less (25%) 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 10,200 litres a year, or £14,280. A gap this size is outside the 10% tolerance of declared figures.

Arocs, 460 kW, 6x4 tractor unit full specificationS 660 A6x4 full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Arocs, 460 kW, 6x4 tractor unit50,880 litres
£71,232 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.