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

Scania S 500 A6x2/2, tractor unit (2020–2023) vs Scania S 500 A6x2/4, tractor unit (2019–2023)

Scania S 500 A6x2/2, tractor unit (2020–2023)

2020–2023 · 368 kW
29.8l/100 km
median; 27.2–31.6 across 15 declared configurations

Scania S 500 A6x2/4, tractor unit (2019–2023)

2019–2023 · 368 kW
29.4l/100 km
median; 26–33 across 59 declared configurations
Scania S 500 A6x2/2, tractor unit (2020–2023) and Scania S 500 A6x2/4, tractor unit (2019–2023) side by side
SpecificationScania S 500 A6x2/2, tractor unit (2020–2023)Scania S 500 A6x2/4, tractor unit (2019–2023)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×2Declared6×2Declared
Registered new2020–2023Registeredcentral 90% of records2019–2023Registeredcentral 90% of records
Engine power368 kWDeclared368 kWDeclared
Engine displacement12.7 litresDeclared12.7 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classNot recordedEURO 6, EURO VI C, EURO VI ERegistered
Gross vehicle weight24,000–28,000 kgDeclaredmedian 24,300 kg, across 484 declared configurations27,000 kgRegistered
Kerb weightNot recorded9,595–9,648 kgRegisteredmedian 9,595 kg, over 4 registrations
WheelbaseNot recorded4,050–4,100 mmRegisteredmedian 4,080 mm, over 4 registrations
Overall lengthNot recorded6,390–6,450 mmRegisteredmedian 6,390 mm, over 4 registrations
Overall heightNot recorded4,000 mmRegistered
Declared fuel, long haul29.8 l/100 km Declaredmedian; 27.2–31.6 l/100 km across 15 declared configurations29.4 l/100 km Declaredmedian; 26–33 l/100 km across 59 declared configurations
CO₂ per tonne-km40.43 g Declaredmedian; 36.94–42.8 g39.82 g Declaredmedian; 35.2–44.78 g

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

What the numbers actually say

There is 0.4 l/100 km between these two (1.3%). 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 480 litres a year (£672). The declared figures for one of them alone span 7 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 S 500 A6x2/2, tractor unit (2020–2023)35,760 litres
£50,064 at the assumed price
Scania S 500 A6x2/4, tractor unit (2019–2023)35,280 litres
£49,392 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.