median; 25.4–27.6 across 19 declared configurations
Iveco S-Way, 309 kW, 4x2 rigid truck and Scania R 420 B4x2 side by side
Specification
Iveco S-Way, 309 kW, 4x2 rigid truck
Scania R 420 B4x2
Vehicle form
Truck (BA)Registered
Truck (BA)Registered
Axle configuration
4×2Declared
4×2Declared
Registered new
2020–2023Registeredcentral 90% of records
2022–2025Registeredcentral 90% of records
Engine power
309 kWDeclared
309 kWDeclared
Engine displacement
11.1 litresDeclared
12.7 litresDeclared
Gearbox
automated, manualDeclared
automatedDeclared
Emission class
Not recorded
EURO VI ERegistered
Gross vehicle weight
18,000–20,000 kgDeclaredmedian 20,000 kg, across 157 declared configurations
19,000–21,000 kgRegisteredmedian 20,500 kg, over 4 registrations
Kerb weight
Not recorded
9,397–10,559 kgRegisteredmedian 9,533 kg, over 4 registrations
Wheelbase
Not recorded
5,350–6,350 mmRegisteredmedian 5,550 mm, over 4 registrations
Overall length
Not recorded
9,350–10,980 mmRegisteredmedian 9,930 mm, over 4 registrations
Overall height
Not recorded
3,950–4,000 mmRegisteredmedian 3,950 mm, over 4 registrations
Declared fuel, long haul
32.2 l/100 km Declaredmedian; 30.4–39.6 l/100 km across 45 declared configurations
26.1 l/100 km Declaredmedian; 25.4–27.6 l/100 km across 19 declared configurations
CO₂ per tonne-km
60.2 g Declaredmedian; 56.74–73.9 g
48.81 g Declaredmedian; 47.46–51.53 g
Fuel and CO₂: long haul at 14 t, 2022 declarations.
What the numbers actually say
The Scania R 420 B4x2 declared 6.1 l/100 km less (23.3%) on the long haul at 14 t, 2022 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 7,320 litres a year, or £10,248. A gap this size is outside the 10% tolerance of declared figures.
