AllTruckData
Comparison · 4×2 lorry · long haul at 14 t

Scania P 420 B4x2 vs Scania R 420 B4x2

Scania P 420 B4x2

2022–2025 · 309 kW
28.1l/100 km
median; 25.8–38.7 across 32 declared configurations

Scania R 420 B4x2

2022–2025 · 309 kW
26.1l/100 km
median; 25.4–27.6 across 19 declared configurations
Scania P 420 B4x2 and Scania R 420 B4x2 side by side
SpecificationScania P 420 B4x2Scania R 420 B4x2
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration4×2Declared4×2Declared
Registered new2022–2025Registeredcentral 90% of records2022–2025Registeredcentral 90% of records
Engine power309 kWDeclared309 kWDeclared
Engine displacement12.7 litresDeclared12.7 litresDeclared
Gearboxautomated, automaticDeclaredautomatedDeclared
Emission classEURO VI ERegisteredEURO VI ERegistered
Gross vehicle weight19,500–22,000 kgRegisteredmedian 22,000 kg, over 13 registrations19,000–21,000 kgRegisteredmedian 20,500 kg, over 4 registrations
Kerb weight8,575–14,024 kgRegisteredmedian 11,128 kg, over 13 registrations9,397–10,559 kgRegisteredmedian 9,533 kg, over 4 registrations
Wheelbase3,750–5,750 mmRegisteredmedian 3,950 mm, over 13 registrations5,350–6,350 mmRegisteredmedian 5,550 mm, over 4 registrations
Overall length6,640–10,620 mmRegisteredmedian 7,050 mm, over 13 registrations9,350–10,980 mmRegisteredmedian 9,930 mm, over 4 registrations
Overall height3,020–4,000 mmRegisteredmedian 3,500 mm, over 12 registrations3,950–4,000 mmRegisteredmedian 3,950 mm, over 4 registrations
Declared fuel, long haul28.1 l/100 km Declaredmedian; 25.8–38.7 l/100 km across 32 declared configurations26.1 l/100 km Declaredmedian; 25.4–27.6 l/100 km across 19 declared configurations
CO₂ per tonne-km52.47 g Declaredmedian; 48.18–72.3 g48.81 g Declaredmedian; 47.46–51.53 g

Fuel and CO₂: long haul at 14 t, 2022 declarations.

What the numbers actually say

There is 2 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 2,400 litres a year (£3,360). The declared figures for one of them alone span 12.9 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

P 420 B4x2 full specificationR 420 B4x2 full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania P 420 B4x233,720 litres
£47,208 at the assumed price
Scania R 420 B4x231,320 litres
£43,848 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.