median; 33.3–40.3 across 4 declared configurations
Iveco Stralis, 375 kW, 4x2 tractor unit and Iveco X-Way, 375 kW, 4x2 tractor unit side by side
Specification
Iveco Stralis, 375 kW, 4x2 tractor unit
Iveco X-Way, 375 kW, 4x2 tractor unit
Vehicle form
Tractor unit (BC)Registered
Tractor unit (BC)Registered
Axle configuration
4×2Declared
4×2Declared
Registered new
2019–2020Registeredcentral 90% of records
2019–2022Registeredcentral 90% of records
Engine power
375 kWDeclared
375 kWDeclared
Engine displacement
12.9 litresDeclared
12.9 litresDeclared
Gearbox
automated, manualDeclared
automated, manualDeclared
Gross vehicle weight
19,000–20,000 kgDeclaredmedian 20,000 kg, across 669 declared configurations
20,000–20,500 kgDeclaredmedian 20,500 kg, across 136 declared configurations
Declared fuel, long haul
33.4 l/100 km Declaredmedian; 32.6–33.9 l/100 km across 4 declared configurations
37.7 l/100 km Declaredmedian; 33.3–40.3 l/100 km across 4 declared configurations
CO₂ per tonne-km
45.3 g Declaredmedian; 44.2–45.9 g
51.1 g Declaredmedian; 45.1–54.6 g
Fuel and CO₂: long haul at 19.3 t, 2021 declarations.
What the numbers actually say
The Iveco Stralis, 375 kW, 4x2 tractor unit declared 4.3 l/100 km less (12.8%) on the long haul at 19.3 t, 2021 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.
