median; 24.1–29.2 across 266 declared configurations
Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2021–2024) and Scania R 420 A4x2 side by side
Specification
Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2021–2024)
Scania R 420 A4x2
Vehicle form
Tractor unit (BC)Registered
Tractor unit (BC)Registered
Axle configuration
4×2Declared
4×2Declared
Registered new
2021–2024Registeredcentral 90% of records
2022–2026Registeredcentral 90% of records
Engine power
310 kWDeclared
309 kWDeclared
Engine displacement
12.8 litresDeclared
12.7 litresDeclared
Gearbox
automatedDeclared
automatedDeclared
Emission class
EURO VI, EURO VI D, EURO VI ERegistered
EURO VI ERegistered
Gross vehicle weight
18,000–20,500 kgRegisteredmedian 19,000 kg, across 29 type-approval versions and 470 records without one
18,600–22,000 kgRegisteredmedian 20,500 kg, across 37 type-approval versions and 8 records without one
Kerb weight
7,464–8,392 kgRegisteredmedian 7,870 kg, over 782 registrations
7,355–8,995 kgRegisteredmedian 8,027 kg, over 612 registrations
Wheelbase
3,550–4,000 mmRegisteredmedian 3,700 mm, over 782 registrations
3,600–3,950 mmRegisteredmedian 3,750 mm, over 612 registrations
Overall length
5,850–6,460 mmRegisteredmedian 6,160 mm, over 782 registrations
5,810–6,160 mmRegisteredmedian 5,960 mm, over 612 registrations
Overall height
3,620–4,000 mmRegisteredmedian 3,920 mm, over 757 registrations
3,530–4,000 mmRegisteredmedian 3,960 mm, over 604 registrations
Declared fuel, long haul
30.1 l/100 km Declaredmedian; 26.9–38.5 l/100 km across 370 declared configurations
25.8 l/100 km Declaredmedian; 24.1–29.2 l/100 km across 266 declared configurations
CO₂ per tonne-km
40.77 g Declaredmedian; 36.42–52.1 g
34.96 g Declaredmedian; 32.73–39.55 g
Fuel and CO₂: long haul at 19.3 t, 2022 declarations.
What the numbers actually say
The Scania R 420 A4x2 declared 4.3 l/100 km less (16.6%) 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 5,160 litres a year, or £7,224. A gap this size is outside the 10% tolerance of declared figures.
