Comparison · 4×2 tractor unit · long haul at 19.3 t

Iveco X-Way, 309 kW, 4x2 tractor unit vs MAN TGS 18.420 4x2, tractor unit (2017–2019)

Iveco X-Way, 309 kW, 4x2 tractor unit

2019–2023 · 309 kW
36.2l/100 km
median; 36.1–39.2 across 5 declared configurations

MAN TGS 18.420 4x2, tractor unit (2017–2019)

2017–2019 · 309 kW
35.3l/100 km
median; 32.1–38.8 across 140 declared configurations
Iveco X-Way, 309 kW, 4x2 tractor unit and MAN TGS 18.420 4x2, tractor unit (2017–2019) side by side
SpecificationIveco X-Way, 309 kW, 4x2 tractor unitMAN TGS 18.420 4x2, tractor unit (2017–2019)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration4×2Declared4×2Declared
Registered new2019–2023Registeredcentral 90% of records2017–2019Registeredcentral 90% of records
Engine power309 kWDeclared309 kWDeclared
Engine displacement11.1 litresDeclared12.4 litresDeclared
Gearboxautomated, manualDeclaredautomated, manualDeclared
Emission classNot recordedEURO 6, EURO VI CRegistered
Gross vehicle weight20,000–20,500 kgDeclaredmedian 20,500 kg, across 34 declared configurations18,000–21,000 kgRegisteredmedian 20,500 kg, across 6 type-approval versions and 6 records without one
Kerb weightNot recorded6,700–7,570 kgRegisteredmedian 7,366 kg, over 106 registrations
WheelbaseNot recorded3,600–3,900 mmRegisteredmedian 3,600 mm, over 106 registrations
Overall lengthNot recorded5,880–6,500 mmRegisteredmedian 5,980 mm, over 106 registrations
Overall heightNot recorded3,070–3,910 mmRegisteredmedian 3,840 mm, over 103 registrations
Declared fuel, long haul36.2 l/100 km Declaredmedian; 36.1–39.2 l/100 km across 5 declared configurations35.3 l/100 km Declaredmedian; 32.1–38.8 l/100 km across 140 declared configurations
CO₂ per tonne-km49.12 g Declaredmedian; 48.9–53.17 g47.8 g Declaredmedian; 43.5–52.6 g

Fuel and CO₂: long haul at 19.3 t, 2022 declarations.

What the numbers actually say

There is 0.9 l/100 km between these two (2.5%). That is inside the 10% tolerance of declared figures, so on fuel alone neither is the better choice: at 120,000 km a year and an assumed £1.40 a litre the gap would be about 1,080 litres a year (£1,512). The declared figures for one of them alone span 6.7 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

Fuel over a year

120,000 km · assumed price
Iveco X-Way, 309 kW, 4x2 tractor unit43,440 litres
£60,816 at the assumed price
MAN TGS 18.420 4x2, tractor unit (2017–2019)42,360 litres
£59,304 at the assumed price
At 120,000 km a year and an assumed £1.40 a litre; the price is an assumption, not one we track.