median; 32.5–50.6 across 15 declared configurations
Iveco S-Way, 309 kW, 4x2 rigid truck and Iveco X-Way, 309 kW, 4x2 rigid truck side by side
Specification
Iveco S-Way, 309 kW, 4x2 rigid truck
Iveco X-Way, 309 kW, 4x2 rigid truck
Vehicle form
Truck (BA)Registered
Truck (BA)Registered
Axle configuration
4×2Declared
4×2Declared
Registered new
2020–2023Registeredcentral 90% of records
2021–2023Registeredcentral 90% of records
Engine power
309 kWDeclared
309 kWDeclared
Engine displacement
11.1 litresDeclared
11.1 litresDeclared
Gearbox
automated, manualDeclared
automated, manualDeclared
Gross vehicle weight
18,000–20,000 kgDeclaredmedian 20,000 kg, across 157 declared configurations
20,000–20,500 kgDeclaredmedian 20,500 kg, across 48 declared configurations
Declared fuel, long haul
32.2 l/100 km Declaredmedian; 30.4–39.6 l/100 km across 45 declared configurations
39.7 l/100 km Declaredmedian; 32.5–50.6 l/100 km across 15 declared configurations
CO₂ per tonne-km
60.2 g Declaredmedian; 56.74–73.9 g
74.3 g Declaredmedian; 60.69–94.6 g
Fuel and CO₂: long haul at 14 t, 2022 declarations.
What the numbers actually say
The Iveco S-Way, 309 kW, 4x2 rigid truck declared 7.5 l/100 km less (23.2%) 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 9,000 litres a year, or £12,600. A gap this size is outside the 10% tolerance of declared figures.
