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

MAN TGS 18.440 4x2, 12.4 L, tractor unit (2014–2025) vs Volvo FM, 323 kW, 4x2 tractor unit (2019–2023)

MAN TGS 18.440 4x2, 12.4 L, tractor unit (2014–2025)

2014–2025 · 324 kW
31.3l/100 km
median; 28.3–33.7 across 28 declared configurations

Volvo FM, 323 kW, 4x2 tractor unit (2019–2023)

2019–2023 · 323 kW
30.6l/100 km
median; 27.4–37.6 across 71 declared configurations
MAN TGS 18.440 4x2, 12.4 L, tractor unit (2014–2025) and Volvo FM, 323 kW, 4x2 tractor unit (2019–2023) side by side
SpecificationMAN TGS 18.440 4x2, 12.4 L, tractor unit (2014–2025)Volvo FM, 323 kW, 4x2 tractor unit (2019–2023)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration4×2Declared4×2Declared
Registered new2014–2025Registeredcentral 90% of records2019–2023Registeredcentral 90% of records
Engine power324 kWDeclared323 kWDeclared
Engine displacement12.4 litresDeclared10.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO 6, EURO VI A, EURO VI B, EURO VI ERegisteredEURO 6, EURO VI D, EURO VI ERegistered
Gross vehicle weight18,000–21,000 kgRegisteredmedian 20,500 kg, across 15 type-approval versions and 10 records without one18,600–22,000 kgRegisteredmedian 21,000 kg, across 23 type-approval versions and 4 records without one
Kerb weight6,738–10,015 kgRegisteredmedian 7,422 kg, over 63 registrations6,639–7,979 kgRegisteredmedian 7,222 kg, over 109 registrations
Wheelbase3,580–3,900 mmRegisteredmedian 3,600 mm, over 63 registrations3,600–3,800 mmRegisteredmedian 3,800 mm, over 109 registrations
Overall length5,780–6,280 mmRegisteredmedian 5,980 mm, over 63 registrations5,790–6,210 mmRegisteredmedian 5,990 mm, over 109 registrations
Overall height3,150–4,000 mmRegisteredmedian 3,840 mm, over 49 registrations2,950–3,910 mmRegisteredmedian 3,590 mm, over 40 registrations
Declared fuel, long haul31.3 l/100 km Declaredmedian; 28.3–33.7 l/100 km across 28 declared configurations30.6 l/100 km Declaredmedian; 27.4–37.6 l/100 km across 71 declared configurations
CO₂ per tonne-km42.42 g Declaredmedian; 38.43–45.71 g41.48 g Declaredmedian; 37.2–51 g

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

What the numbers actually say

There is 0.7 l/100 km between these two (2.2%). 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 840 litres a year (£1,176). The declared figures for one of them alone span 10.2 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
MAN TGS 18.440 4x2, 12.4 L, tractor unit (2014–2025)37,560 litres
£52,584 at the assumed price
Volvo FM, 323 kW, 4x2 tractor unit (2019–2023)36,720 litres
£51,408 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.