Comparison · 4×2 tractor unit · long haul at 19.3 t

Scania R 520 A4x2 (2019–2021) vs Scania R 580 A4x2 (2019–2021)

Scania R 520 A4x2 (2019–2021)

2019–2021 · 382 kW
32.3l/100 km
median; 30.5–40.3 across 23 declared configurations

Scania R 580 A4x2 (2019–2021)

2019–2021 · 427 kW
33l/100 km
median; 31.2–37.8 across 26 declared configurations
Scania R 520 A4x2 (2019–2021) and Scania R 580 A4x2 (2019–2021) side by side
SpecificationScania R 520 A4x2 (2019–2021)Scania R 580 A4x2 (2019–2021)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration4×2Declared4×2Declared
Registered new2019–2021Registeredcentral 90% of records2019–2021Registeredcentral 90% of records
Engine power382 kWDeclared427 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
Gearboxautomated, manualDeclaredautomated, manualDeclared
Emission classEURO 6, EURO VI, EURO VI C, EURO VI DRegisteredEURO VI C, EURO VI DRegistered
Gross vehicle weight19,000–22,000 kgRegisteredmedian 20,500 kg, across 27 type-approval versions and 17 records without one19,000–22,000 kgRegisteredmedian 20,500 kg, across 17 type-approval versions and 9 records without one
Kerb weight7,669–9,529 kgRegisteredmedian 8,689 kg, over 138 registrations8,005–9,406 kgRegisteredmedian 8,829 kg, over 47 registrations
Wheelbase3,600–3,950 mmRegisteredmedian 3,750 mm, over 138 registrations3,600–3,950 mmRegisteredmedian 3,750 mm, over 47 registrations
Overall length5,850–6,200 mmRegisteredmedian 5,960 mm, over 138 registrations5,850–6,320 mmRegisteredmedian 5,960 mm, over 46 registrations
Overall height3,470–4,000 mmRegisteredmedian 4,000 mm, over 34 registrations3,480–4,000 mmRegisteredmedian 3,780 mm, over 10 registrations
Declared fuel, long haul32.3 l/100 km Declaredmedian; 30.5–40.3 l/100 km across 23 declared configurations33 l/100 km Declaredmedian; 31.2–37.8 l/100 km across 26 declared configurations
CO₂ per tonne-km43.8 g Declaredmedian; 41.3–54.7 g44.7 g Declaredmedian; 42.3–51.2 g

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

What the numbers actually say

There is 0.7 l/100 km between these two (2.1%). 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 9.8 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 520 A4x2 (2019–2021)38,760 litres
£54,264 at the assumed price
Scania R 580 A4x2 (2019–2021)39,600 litres
£55,440 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.