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

DAF XD 340 FT vs Volvo FM, 251 kW, 4x2 tractor unit (2019–2023)

DAF XD 340 FT

2023–2025 · 251 kW
27.5l/100 km
median; 27.5–29 across 3 declared configurations

Volvo FM, 251 kW, 4x2 tractor unit (2019–2023)

2019–2023 · 251 kW
29.6l/100 km
median; 28.4–42.1 across 18 declared configurations
DAF XD 340 FT and Volvo FM, 251 kW, 4x2 tractor unit (2019–2023) side by side
SpecificationDAF XD 340 FTVolvo FM, 251 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 new2023–2025Registeredcentral 90% of records2019–2023Registeredcentral 90% of records
Engine power251 kWDeclared251 kWDeclared
Engine displacement10.8 litresDeclared10.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI ERegisteredEURO 6, EURO VI D, EURO VI ERegistered
Gross vehicle weight20,500 kgRegistered18,200–21,000 kgRegisteredmedian 20,500 kg, across 14 type-approval versions and 2 records without one
Kerb weight6,959–7,345 kgRegisteredmedian 7,171 kg, over 30 registrations6,828–7,650 kgRegisteredmedian 7,050 kg, over 72 registrations
Wheelbase3,600–3,800 mmRegisteredmedian 3,600 mm, over 30 registrations3,600–3,800 mmRegisteredmedian 3,800 mm, over 72 registrations
Overall length5,880–6,320 mmRegisteredmedian 5,880 mm, over 30 registrations5,790–5,990 mmRegisteredmedian 5,990 mm, over 72 registrations
Overall height3,500 mmRegistered3,380–3,890 mmRegisteredmedian 3,820 mm, over 18 registrations
Declared fuel, long haul27.5 l/100 km Declaredmedian; 27.5–29 l/100 km across 3 declared configurations29.6 l/100 km Declaredmedian; 28.4–42.1 l/100 km across 18 declared configurations
CO₂ per tonne-km37.35 g Declaredmedian; 37.34–39.37 g40.17 g Declaredmedian; 38.52–57.1 g

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

What the numbers actually say

There is 2.1 l/100 km between these two (7.6%). 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 2,520 litres a year (£3,528). The declared figures for one of them alone span 13.7 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

XD 340 FT full specificationFM, 251 kW, 4x2 tractor unit (2019–2023) full specification

Fuel over a year

120,000 km · assumed price
DAF XD 340 FT33,000 litres
£46,200 at the assumed price
Volvo FM, 251 kW, 4x2 tractor unit (2019–2023)35,520 litres
£49,728 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.