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

Iveco Stralis, 309 kW, 4x2 tractor unit (2019–2021) vs MAN TGX 18.500 4x2, tractor unit (2019–2020)

Iveco Stralis, 309 kW, 4x2 tractor unit (2019–2021)

2019–2021 · 309 kW
37.2l/100 km
median; 33.9–37.2 across 7 declared configurations
Lower declared fuel

MAN TGX 18.500 4x2, tractor unit (2019–2020)

2019–2020 · 368 kW
32.8l/100 km
median; 31.4–36.5 across 54 declared configurations
Iveco Stralis, 309 kW, 4x2 tractor unit (2019–2021) and MAN TGX 18.500 4x2, tractor unit (2019–2020) side by side
SpecificationIveco Stralis, 309 kW, 4x2 tractor unit (2019–2021)MAN TGX 18.500 4x2, tractor unit (2019–2020)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration4×2Declared4×2Declared
Registered new2019–2021Registeredcentral 90% of records2019–2020Registeredcentral 90% of records
Engine power309 kWDeclared368 kWDeclared
Engine displacement11.1 litresDeclared12.4 litresDeclared
Gearboxautomated, manualDeclaredautomated, manualDeclared
Emission classNot recordedEURO 6, EURO VI, EURO VI CRegistered
Gross vehicle weight19,000–20,000 kgDeclaredmedian 20,000 kg, across 38 declared configurations18,000–21,000 kgRegisteredmedian 20,500 kg, across 27 type-approval versions and 54 records without one
Kerb weightNot recorded5,900–9,483 kgRegisteredmedian 7,983 kg, over 255 registrations
WheelbaseNot recorded3,550–3,900 mmRegisteredmedian 3,600 mm, over 255 registrations
Overall lengthNot recorded5,800–6,280 mmRegisteredmedian 6,000 mm, over 255 registrations
Overall heightNot recorded3,590–4,000 mmRegisteredmedian 3,900 mm, over 133 registrations
Declared fuel, long haul37.2 l/100 km Declaredmedian; 33.9–37.2 l/100 km across 7 declared configurations32.8 l/100 km Declaredmedian; 31.4–36.5 l/100 km across 54 declared configurations
CO₂ per tonne-km50.5 g Declaredmedian; 46–50.5 g44.4 g Declaredmedian; 42.6–49.4 g

Fuel and CO₂: long haul at 19.3 t, 2020 declarations.

What the numbers actually say

The MAN TGX 18.500 4x2, tractor unit (2019–2020) declared 4.4 l/100 km less (13.4%) on the long haul at 19.3 t, 2020 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 5,280 litres a year, or £7,392. A gap this size is outside the 10% tolerance of declared figures.

Fuel over a year

120,000 km · assumed price
Iveco Stralis, 309 kW, 4x2 tractor unit (2019–2021)44,640 litres
£62,496 at the assumed price
MAN TGX 18.500 4x2, tractor unit (2019–2020)39,360 litres
£55,104 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.