median; 29.1–37.6 across 139 declared configurations
Iveco X-Way, 419 kW, 4x2 tractor unit and MAN TGX 18.580 4x2, tractor unit (2019–2023) side by side
Specification
Iveco X-Way, 419 kW, 4x2 tractor unit
MAN TGX 18.580 4x2, tractor unit (2019–2023)
Vehicle form
Tractor unit (BC)Registered
Tractor unit (BC)Registered
Axle configuration
4×2Declared
4×2Declared
Registered new
2019–2023Registeredcentral 90% of records
2019–2023Registeredcentral 90% of records
Engine power
419 kWDeclared
427 kWDeclared
Engine displacement
12.9 litresDeclared
15.3 litresDeclared
Gearbox
automated, manualDeclared
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 105 declared configurations
18,000–21,000 kgRegisteredmedian 20,500 kg, across 12 type-approval versions and 3 records without one
Kerb weight
Not recorded
7,954–9,063 kgRegisteredmedian 8,322 kg, over 16 registrations
Wheelbase
Not recorded
3,600–3,900 mmRegisteredmedian 3,600 mm, over 16 registrations
Overall length
Not recorded
5,930–6,280 mmRegisteredmedian 5,980 mm, over 16 registrations
Overall height
Not recorded
3,880–3,950 mmRegisteredmedian 3,900 mm, over 9 registrations
Declared fuel, long haul
36.3 l/100 km Declaredmedian; 32–40 l/100 km across 35 declared configurations
31.2 l/100 km Declaredmedian; 29.1–37.6 l/100 km across 139 declared configurations
CO₂ per tonne-km
49.2 g Declaredmedian; 43.32–54.24 g
42.33 g Declaredmedian; 39.42–51.01 g
Fuel and CO₂: long haul at 19.3 t, 2022 declarations.
What the numbers actually say
The MAN TGX 18.580 4x2, tractor unit (2019–2023) declared 5.1 l/100 km less (16.3%) 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 6,120 litres a year, or £8,568. A gap this size is outside the 10% tolerance of declared figures.
