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

DAF XD 450 FT vs Volvo FM, 323 kW, 4x2 tractor unit (2019–2023)

DAF XD 450 FT

2022–2025 · 330 kW
28.4l/100 km
median; 25.3–32.3 across 147 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
DAF XD 450 FT and Volvo FM, 323 kW, 4x2 tractor unit (2019–2023) side by side
SpecificationDAF XD 450 FTVolvo 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 new2022–2025Registeredcentral 90% of records2019–2023Registeredcentral 90% of records
Engine power330 kWDeclared323 kWDeclared
Engine displacement10.8 litresDeclared10.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI ERegisteredEURO 6, EURO VI D, EURO VI ERegistered
Gross vehicle weight19,000–20,500 kgRegisteredmedian 20,500 kg, across 29 type-approval versions and 39 records without one18,600–22,000 kgRegisteredmedian 21,000 kg, across 23 type-approval versions and 4 records without one
Kerb weight6,785–8,354 kgRegisteredmedian 7,361 kg, over 406 registrations6,639–7,979 kgRegisteredmedian 7,222 kg, over 109 registrations
Wheelbase3,600–4,550 mmRegisteredmedian 3,800 mm, over 406 registrations3,600–3,800 mmRegisteredmedian 3,800 mm, over 109 registrations
Overall length5,880–6,400 mmRegisteredmedian 6,080 mm, over 406 registrations5,790–6,210 mmRegisteredmedian 5,990 mm, over 109 registrations
Overall height2,900–4,000 mmRegisteredmedian 3,650 mm, over 131 registrations2,950–3,910 mmRegisteredmedian 3,590 mm, over 40 registrations
Declared fuel, long haul28.4 l/100 km Declaredmedian; 25.3–32.3 l/100 km across 147 declared configurations30.6 l/100 km Declaredmedian; 27.4–37.6 l/100 km across 71 declared configurations
CO₂ per tonne-km38.5 g Declaredmedian; 34.34–43.82 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 2.2 l/100 km between these two (7.7%). 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 2,640 litres a year (£3,696). 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.

XD 450 FT full specificationFM, 323 kW, 4x2 tractor unit (2019–2023) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
DAF XD 450 FT34,080 litres
£47,712 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.