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

Scania R 580 A6x2/4 vs Scania R 580 A6x2, tractor unit (2019–2021)

Scania R 580 A6x2/4

2019–2021 · 427 kW

33.6l/100 km

median; 31.4–40.9 across 15 declared configurations

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

2019–2021 · 427 kW

33.2l/100 km

median; across 1 declared configurations

Scania R 580 A6x2/4 and Scania R 580 A6x2, tractor unit (2019–2021) side by side
Specification	Scania R 580 A6x2/4	Scania R 580 A6x2, tractor unit (2019–2021)
Vehicle form	Tractor unit for semi-trailer (BC)Registered	Tractor unit for semi-trailer (BC)Registered
Axle configuration	6×2Declared	6×2Declared
Registered new	2019–2021Registeredcentral 90% of records	2019–2021Registeredcentral 90% of records
Engine power	427 kWDeclared	427 kWDeclared
Engine displacement	16.4 litresDeclared	16.4 litresDeclared
Gearbox	automated, manualDeclared	automated, manualDeclared
Emission class	EURO VIRegistered	EURO VI, EURO VI CRegistered
Gross vehicle weight	27,000 kgRegistered	28,000–30,000 kgRegisteredmedian 28,000 kg, over 2 registrations
Kerb weight	10,000 kgRegistered	10,270–10,350 kgRegisteredmedian 10,270 kg, over 2 registrations
Wheelbase	4,110 mmRegistered	3,950–4,650 mmRegisteredmedian 3,950 mm, over 2 registrations
Overall length	5,350 mmRegistered	7,050–7,650 mmRegisteredmedian 7,050 mm, over 2 registrations
Overall height	Not recorded	3,950 mmRegistered
Declared fuel, long haul	33.6 l/100 km Declaredmedian; 31.4–40.9 l/100 km across 15 declared configurations	33.2 l/100 km Declaredmedian; across 1 declared configuration
CO₂ per tonne-km	45.5 g Declaredmedian; 42.6–55.4 g	45 g Declaredmedian

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

What the numbers actually say

There is 0.4 l/100 km between these two (1.2%). 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 480 litres a year (£672). The declared figures for one of them alone span 9.5 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

R 580 A6x2/4 full specification R 580 A6x2, tractor unit (2019–2021) full specification The fuel ranking

Fuel over a year

120,000 km · assumed price

Scania R 580 A6x2/440,320 litres

£56,448 at the assumed price

Scania R 580 A6x2, tractor unit (2019–2021)39,840 litres

£55,776 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.