Mercedes-Benz Arocs, 425 kW, 6x4 tractor unit and Scania R 590 A6x4 side by side
Specification
Mercedes-Benz Arocs, 425 kW, 6x4 tractor unit
Scania R 590 A6x4
Vehicle form
Tractor unit (BC)Registered
Tractor unit (BC)Registered
Axle configuration
6×4Declared
6×4Declared
Registered new
2015–2023Registeredcentral 90% of records
2021–2025Registeredcentral 90% of records
Engine power
425 kWDeclared
434 kWDeclared
Engine displacement
15.6 litresDeclared
16.4 litresDeclared
Gearbox
automatedDeclared
automatedDeclared
Emission class
EURO VI, EURO VI A, EURO VI D, EURO VI ERegistered
EURO VI, EURO VI ERegistered
Gross vehicle weight
28,000–33,000 kgRegisteredmedian 33,000 kg, across 5 type-approval versions and 6 records without one
28,000–36,000 kgRegisteredmedian 35,000 kg, across 7 type-approval versions and 2 records without one
Kerb weight
10,312–16,775 kgRegisteredmedian 10,552 kg, over 21 registrations
10,026–10,790 kgRegisteredmedian 10,135 kg, over 10 registrations
Wheelbase
4,800–5,250 mmRegisteredmedian 4,800 mm, over 21 registrations
4,500–4,700 mmRegisteredmedian 4,500 mm, over 10 registrations
Overall length
7,060–7,530 mmRegisteredmedian 7,060 mm, over 21 registrations
6,820–7,220 mmRegisteredmedian 6,870 mm, over 10 registrations
Overall height
3,930–4,000 mmRegisteredmedian 3,930 mm, over 6 registrations
3,220–4,000 mmRegisteredmedian 3,630 mm, over 8 registrations
Declared fuel, long haul
41.7 l/100 km Declaredmedian; 38.5–44.8 l/100 km across 21 declared configurations
33.5 l/100 km Declaredmedian; 32.1–41 l/100 km across 36 declared configurations
CO₂ per tonne-km
56.51 g Declaredmedian; 52.22–60.8 g
45.46 g Declaredmedian; 43.57–55.54 g
Fuel and CO₂: long haul at 19.3 t, 2022 declarations.
What the numbers actually say
The Scania R 590 A6x4 declared 8.2 l/100 km less (24.4%) 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 9,840 litres a year, or £13,776. A gap this size is outside the 10% tolerance of declared figures.
