Comparison · 6×2 tractor unit · long haul at 19.3 t

DAF XD 450 FTP vs DAF XF 450 FTP, tractor unit (2017–2023)

DAF XD 450 FTP

2023–2025 · 330 kW
28.9l/100 km
median; 28.2–32 across 13 declared configurations

DAF XF 450 FTP, tractor unit (2017–2023)

2017–2023 · 330 kW
29.2l/100 km
median; 28–34.8 across 35 declared configurations
DAF XD 450 FTP and DAF XF 450 FTP, tractor unit (2017–2023) side by side
SpecificationDAF XD 450 FTPDAF XF 450 FTP, tractor unit (2017–2023)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×2Declared6×2Declared
Registered new2023–2025Registeredcentral 90% of records2017–2023Registeredcentral 90% of records
Engine power330 kWDeclared330 kWDeclared
Engine displacement10.8 litresDeclared10.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI ERegisteredEURO VI C, EURO VI D, EURO VI ERegistered
Gross vehicle weight23,900 kgRegistered23,400–23,900 kgRegisteredmedian 23,900 kg, across 7 type-approval versions and 1 record without one
Kerb weight7,585–7,945 kgRegisteredmedian 7,710 kg, over 56 registrations7,907–8,733 kgRegisteredmedian 8,382 kg, over 95 registrations
Wheelbase3,850–4,050 mmRegisteredmedian 3,850 mm, over 56 registrations3,850–4,200 mmRegisteredmedian 4,050 mm, over 95 registrations
Overall length6,370–6,570 mmRegisteredmedian 6,370 mm, over 56 registrations6,210–6,570 mmRegisteredmedian 6,410 mm, over 95 registrations
Overall height3,020–3,530 mmRegisteredmedian 3,020 mm, over 20 registrations3,800 mmRegistered
Declared fuel, long haul28.9 l/100 km Declaredmedian; 28.2–32 l/100 km across 13 declared configurations29.2 l/100 km Declaredmedian; 28–34.8 l/100 km across 35 declared configurations
CO₂ per tonne-km39.12 g Declaredmedian; 38.25–43.4 g39.56 g Declaredmedian; 37.91–47.1 g

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

What the numbers actually say

There is 0.3 l/100 km between these two (1%). 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 360 litres a year (£504). The declared figures for one of them alone span 6.8 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
DAF XD 450 FTP34,680 litres
£48,552 at the assumed price
DAF XF 450 FTP, tractor unit (2017–2023)35,040 litres
£49,056 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.