DAF XF 450 FA and Volvo FM, 323 kW, 4x2 rigid truck side by side
Specification
DAF XF 450 FA
Volvo FM, 323 kW, 4x2 rigid truck
Vehicle form
Truck (BA)Registered
Truck (BA)Registered
Axle configuration
4×2Declared
4×2Declared
Registered new
2018–2024Registeredcentral 90% of records
2019–2023Registeredcentral 90% of records
Engine power
330 kWDeclared
323 kWDeclared
Engine displacement
10.8 litresDeclared
10.8 litresDeclared
Gearbox
automatedDeclared
automated, automaticDeclared
Emission class
EURO VI C, EURO VI D, EURO VI ERegistered
Not recorded
Gross vehicle weight
18,000–20,500 kgRegisteredmedian 20,500 kg, over 113 registrations
19,500–23,000 kgDeclaredmedian 22,000 kg, across 133 declared configurations
Kerb weight
7,080–12,744 kgRegisteredmedian 10,528 kg, over 113 registrations
Not recorded
Wheelbase
4,700–6,900 mmRegisteredmedian 5,700 mm, over 113 registrations
Not recorded
Overall length
8,400–12,000 mmRegisteredmedian 9,880 mm, over 113 registrations
Not recorded
Overall height
3,350–4,000 mmRegisteredmedian 3,980 mm, over 45 registrations
Not recorded
Declared fuel, long haul
28 l/100 km Declaredmedian; 27.1–31.9 l/100 km across 31 declared configurations
30.9 l/100 km Declaredmedian; 28.6–42 l/100 km across 27 declared configurations
CO₂ per tonne-km
52.25 g Declaredmedian; 50.61–59.5 g
57.71 g Declaredmedian; 53.5–78.6 g
Fuel and CO₂: long haul at 14 t, 2022 declarations.
What the numbers actually say
The DAF XF 450 FA declared 2.9 l/100 km less (10.3%) on the long haul at 14 t, 2022 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 3,480 litres a year, or £4,872. A gap this size is outside the 10% tolerance of declared figures.
