Comparison · 6×2 lorry · long haul at 19.3 t

Scania S 520 A6x2, lorry (2019–2020) vs Scania S 580 A6x2/2, lorry (2019–2020)

Scania S 520 A6x2, lorry (2019–2020)

2019–2020 · 382 kW
32.8l/100 km
median; 32.2–33.7 across 10 declared configurations

Scania S 580 A6x2/2, lorry (2019–2020)

2019–2020 · 427 kW
33.6l/100 km
median; 32.2–36.4 across 31 declared configurations
Scania S 520 A6x2, lorry (2019–2020) and Scania S 580 A6x2/2, lorry (2019–2020) side by side
SpecificationScania S 520 A6x2, lorry (2019–2020)Scania S 580 A6x2/2, lorry (2019–2020)
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration6×2Declared6×2Declared
Registered new2019–2020Registeredcentral 90% of records2019–2020Registeredcentral 90% of records
Engine power382 kWDeclared427 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Gross vehicle weight27,000–29,000 kgDeclaredmedian 27,000 kg, across 10 declared configurations24,000–24,300 kgDeclaredmedian 24,300 kg, across 31 declared configurations
Declared fuel, long haul32.8 l/100 km Declaredmedian; 32.2–33.7 l/100 km across 10 declared configurations33.6 l/100 km Declaredmedian; 32.2–36.4 l/100 km across 31 declared configurations
CO₂ per tonne-km44.4 g Declaredmedian; 43.6–45.6 g45.6 g Declaredmedian; 43.6–49.3 g

Fuel and CO₂: long haul at 19.3 t, 2019 declarations.

What the numbers actually say

There is 0.8 l/100 km between these two (2.4%). 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 960 litres a year (£1,344). The declared figures for one of them alone span 4.2 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 520 A6x2, lorry (2019–2020)39,360 litres
£55,104 at the assumed price
Scania S 580 A6x2/2, lorry (2019–2020)40,320 litres
£56,448 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.