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

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

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 XG 450 FTP

2022–2025 · 330 kW
27.9l/100 km
median; 27.3–29.1 across 14 declared configurations
DAF XF 450 FTP, tractor unit (2017–2023) and DAF XG 450 FTP side by side
SpecificationDAF XF 450 FTP, tractor unit (2017–2023)DAF XG 450 FTP
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×2Declared6×2Declared
Registered new2017–2023Registeredcentral 90% of records2022–2025Registeredcentral 90% of records
Engine power330 kWDeclared330 kWDeclared
Engine displacement10.8 litresDeclared10.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI C, EURO VI D, EURO VI ERegisteredEURO VI ERegistered
Gross vehicle weight23,400–23,900 kgRegisteredmedian 23,900 kg, across 7 type-approval versions and 1 record without one23,900 kgRegistered
Kerb weight7,907–8,733 kgRegisteredmedian 8,382 kg, over 95 registrations8,033–8,438 kgRegisteredmedian 8,103 kg, over 8 registrations
Wheelbase3,850–4,200 mmRegisteredmedian 4,050 mm, over 95 registrations4,050 mmRegistered
Overall length6,210–6,570 mmRegisteredmedian 6,410 mm, over 95 registrations6,570 mmRegistered
Overall height3,800 mmRegistered3,930–3,960 mmRegisteredmedian 3,930 mm, over 2 registrations
Declared fuel, long haul29.2 l/100 km Declaredmedian; 28–34.8 l/100 km across 35 declared configurations27.9 l/100 km Declaredmedian; 27.3–29.1 l/100 km across 14 declared configurations
CO₂ per tonne-km39.56 g Declaredmedian; 37.91–47.1 g37.79 g Declaredmedian; 36.96–39.5 g

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

What the numbers actually say

There is 1.3 l/100 km between these two (4.6%). 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 1,560 litres a year (£2,184). 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 XF 450 FTP, tractor unit (2017–2023)35,040 litres
£49,056 at the assumed price
DAF XG 450 FTP33,480 litres
£46,872 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.