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

Scania G 420 B4x2 vs Scania P 420 B4x2

Scania G 420 B4x2

2023–2026 · 309 kW
26.7l/100 km
median; 25.6–27.5 across 10 declared configurations

Scania P 420 B4x2

2022–2025 · 309 kW
28.1l/100 km
median; 25.8–38.7 across 32 declared configurations
Scania G 420 B4x2 and Scania P 420 B4x2 side by side
SpecificationScania G 420 B4x2Scania P 420 B4x2
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration4×2Declared4×2Declared
Registered new2023–2026Registeredcentral 90% of records2022–2025Registeredcentral 90% of records
Engine power309 kWDeclared309 kWDeclared
Engine displacement12.7 litresDeclared12.7 litresDeclared
GearboxautomatedDeclaredautomated, automaticDeclared
Emission classEURO VI ERegisteredEURO VI ERegistered
Gross vehicle weight18,600–23,000 kgRegisteredmedian 21,000 kg, over 16 registrations19,500–22,000 kgRegisteredmedian 22,000 kg, over 13 registrations
Kerb weight9,563–14,131 kgRegisteredmedian 11,252 kg, over 16 registrations8,575–14,024 kgRegisteredmedian 11,128 kg, over 13 registrations
Wheelbase3,350–5,550 mmRegisteredmedian 4,950 mm, over 16 registrations3,750–5,750 mmRegisteredmedian 3,950 mm, over 13 registrations
Overall length6,310–9,720 mmRegisteredmedian 9,050 mm, over 16 registrations6,640–10,620 mmRegisteredmedian 7,050 mm, over 13 registrations
Overall height3,300–3,960 mmRegisteredmedian 3,520 mm, over 13 registrations3,020–4,000 mmRegisteredmedian 3,500 mm, over 12 registrations
Declared fuel, long haul26.7 l/100 km Declaredmedian; 25.6–27.5 l/100 km across 10 declared configurations28.1 l/100 km Declaredmedian; 25.8–38.7 l/100 km across 32 declared configurations
CO₂ per tonne-km49.9 g Declaredmedian; 47.79–51.35 g52.47 g Declaredmedian; 48.18–72.3 g

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

What the numbers actually say

There is 1.4 l/100 km between these two (5.2%). 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 1,680 litres a year (£2,352). 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.

G 420 B4x2 full specificationP 420 B4x2 full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania G 420 B4x232,040 litres
£44,856 at the assumed price
Scania P 420 B4x233,720 litres
£47,208 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.