median; 28.9–38.2 across 90 declared configurations
Iveco X-Way, 387 kW, 4x2 tractor unit and MAN TGX 18.540 4x2, 15.3 L, tractor unit (2019–2023) side by side
Specification
Iveco X-Way, 387 kW, 4x2 tractor unit
MAN TGX 18.540 4x2, 15.3 L, tractor unit (2019–2023)
Vehicle form
Tractor unit (BC)Registered
Tractor unit (BC)Registered
Axle configuration
4×2Declared
4×2Declared
Registered new
2022–2023Registeredcentral 90% of records
2019–2023Registeredcentral 90% of records
Engine power
387 kWDeclared
397 kWDeclared
Engine displacement
12.9 litresDeclared
15.3 litresDeclared
Gearbox
automatedDeclared
automatedDeclared
Emission class
Not recorded
EURO VI C, EURO VI D, EURO VI ERegistered
Gross vehicle weight
20,000–20,500 kgDeclaredmedian 20,500 kg, across 101 declared configurations
20,500–21,000 kgRegisteredmedian 21,000 kg, across 5 type-approval versions and 1 record without one
Kerb weight
Not recorded
7,888–8,814 kgRegisteredmedian 8,143 kg, over 7 registrations
Wheelbase
Not recorded
3,600–3,900 mmRegisteredmedian 3,900 mm, over 7 registrations
Overall length
Not recorded
5,900–6,280 mmRegisteredmedian 6,280 mm, over 7 registrations
Overall height
Not recorded
3,880–4,000 mmRegisteredmedian 3,910 mm, over 6 registrations
Declared fuel, long haul
35.2 l/100 km Declaredmedian; 30.8–39.7 l/100 km across 56 declared configurations
30.7 l/100 km Declaredmedian; 28.9–38.2 l/100 km across 90 declared configurations
CO₂ per tonne-km
47.78 g Declaredmedian; 41.76–53.8 g
41.69 g Declaredmedian; 39.19–51.74 g
Fuel and CO₂: long haul at 19.3 t, 2022 declarations.
What the numbers actually say
The MAN TGX 18.540 4x2, 15.3 L, tractor unit (2019–2023) declared 4.5 l/100 km less (14.6%) 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 5,400 litres a year, or £7,560. A gap this size is outside the 10% tolerance of declared figures.
