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

Scania S 580 A6x2, tractor unit (2019–2021) vs Scania S 650 A6x2/4, tractor unit (2019–2022)

Scania S 580 A6x2, tractor unit (2019–2021)

2019–2021 · 427 kW
33l/100 km
median; 31.8–35.7 across 7 declared configurations

Scania S 650 A6x2/4, tractor unit (2019–2022)

2019–2022 · 478 kW
32.5l/100 km
median; 32.2–35 across 24 declared configurations
Scania S 580 A6x2, tractor unit (2019–2021) and Scania S 650 A6x2/4, tractor unit (2019–2022) side by side
SpecificationScania S 580 A6x2, tractor unit (2019–2021)Scania S 650 A6x2/4, tractor unit (2019–2022)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×2Declared6×2Declared
Registered new2019–2021Registeredcentral 90% of records2019–2022Registeredcentral 90% of records
Engine power427 kWDeclared478 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VIRegisteredNot recorded
Gross vehicle weight26,500–28,000 kgRegisteredmedian 27,000 kg, over 3 registrations24,300–29,000 kgDeclaredmedian 27,000 kg, across 171 declared configurations
Kerb weight10,169–10,475 kgRegisteredmedian 10,180 kg, over 3 registrationsNot recorded
Wheelbase4,250–4,470 mmRegisteredmedian 4,300 mm, over 3 registrationsNot recorded
Overall length6,500–6,800 mmRegisteredmedian 6,600 mm, over 3 registrationsNot recorded
Overall height3,950 mmRegisteredNot recorded
Declared fuel, long haul33 l/100 km Declaredmedian; 31.8–35.7 l/100 km across 7 declared configurations32.5 l/100 km Declaredmedian; 32.2–35 l/100 km across 24 declared configurations
CO₂ per tonne-km44.7 g Declaredmedian; 43.2–48.5 g44 g Declaredmedian; 43.7–47.4 g

Fuel and CO₂: long haul at 19.3 t, 2021 declarations.

What the numbers actually say

There is 0.5 l/100 km between these two (1.5%). 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 600 litres a year (£840). The declared figures for one of them alone span 3.9 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

S 580 A6x2, tractor unit (2019–2021) full specificationS 650 A6x2/4, tractor unit (2019–2022) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania S 580 A6x2, tractor unit (2019–2021)39,600 litres
£55,440 at the assumed price
Scania S 650 A6x2/4, tractor unit (2019–2022)39,000 litres
£54,600 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.