Comparison · 6×2 tractor unit · long haul at 19.3 t

Scania R 450 A6x2/4, tractor unit (2019–2022) vs Scania R 450 A6x2*4

Scania R 450 A6x2/4, tractor unit (2019–2022)

2019–2022 · 331 kW
30.2l/100 km
median; 28.3–30.9 across 30 declared configurations

Scania R 450 A6x2*4

2019–2022 · 331 kW
32.4l/100 km
median; 32.4–34.2 across 2 declared configurations
Scania R 450 A6x2/4, tractor unit (2019–2022) and Scania R 450 A6x2*4 side by side
SpecificationScania R 450 A6x2/4, tractor unit (2019–2022)Scania R 450 A6x2*4
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×2Declared6×2Declared
Registered new2019–2022Registeredcentral 90% of records2019–2022Registeredcentral 90% of records
Engine power331 kWDeclared331 kWDeclared
Engine displacement12.7 litresDeclared12.7 litresDeclared
Gearboxautomated, manualDeclaredautomatedDeclared
Emission classEURO VI CRegisteredNot recorded
Gross vehicle weight26,500 kgRegistered26,500–31,000 kgDeclaredmedian 28,000 kg, across 20 declared configurations
Kerb weight9,315 kgRegisteredNot recorded
Wheelbase4,050 mmRegisteredNot recorded
Overall length6,380 mmRegisteredNot recorded
Declared fuel, long haul30.2 l/100 km Declaredmedian; 28.3–30.9 l/100 km across 30 declared configurations32.4 l/100 km Declaredmedian; 32.4–34.2 l/100 km across 2 declared configurations
CO₂ per tonne-km40.95 g Declaredmedian; 38.42–41.96 g44 g Declaredmedian; 44–46.4 g

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

What the numbers actually say

There is 2.2 l/100 km between these two (7.2%). 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 2,640 litres a year (£3,696). The declared figures for one of them alone span 2.6 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 R 450 A6x2/4, tractor unit (2019–2022)36,240 litres
£50,736 at the assumed price
Scania R 450 A6x2*438,880 litres
£54,432 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.