Comparison · 6×4 tractor unit · long haul at 19.3 t

Scania P 450 A6x4 vs Scania R 450 A6x4

Scania P 450 A6x4

2021 · 331 kW
36.1l/100 km
median; 35.9–37.4 across 3 declared configurations

Scania R 450 A6x4

2017–2021 · 331 kW
36.8l/100 km
median; across 2 declared configurations
Scania P 450 A6x4 and Scania R 450 A6x4 side by side
SpecificationScania P 450 A6x4Scania R 450 A6x4
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×4Declared6×4Declared
Registered new2021Registeredcentral 90% of records2017–2021Registeredcentral 90% of records
Engine power331 kWDeclared331 kWDeclared
Engine displacement12.7 litresDeclared12.7 litresDeclared
Gearboxautomated, manualDeclaredautomatedDeclared
Emission classNot recordedEURO VI C, EURO VI DRegistered
Gross vehicle weight26,100–38,000 kgDeclaredmedian 26,100 kg, across 12 declared configurations30,000–34,000 kgRegisteredmedian 31,000 kg, across 2 type-approval versions and 1 record without one
Kerb weightNot recorded9,745–21,960 kgRegisteredmedian 9,857 kg, over 5 registrations
WheelbaseNot recorded4,300–4,850 mmRegisteredmedian 4,500 mm, over 5 registrations
Overall lengthNot recorded6,670–7,770 mmRegisteredmedian 6,710 mm, over 5 registrations
Overall heightNot recorded3,570 mmRegistered
Declared fuel, long haul36.1 l/100 km Declaredmedian; 35.9–37.4 l/100 km across 3 declared configurations36.8 l/100 km Declaredmedian; across 2 declared configurations
CO₂ per tonne-km48.9 g Declaredmedian; 48.7–50.7 g49.9 g Declaredmedian; 49.9–50 g

Fuel and CO₂: long haul at 19.3 t, 2020 declarations.

What the numbers actually say

There is 0.7 l/100 km between these two (1.9%). 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 840 litres a year (£1,176). The declared figures for one of them alone span 1.5 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
Scania P 450 A6x443,320 litres
£60,648 at the assumed price
Scania R 450 A6x444,160 litres
£61,824 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.