Comparison · 6×4 lorry · long haul at 19.3 t

Scania S 660 B6x4 vs Volvo FH, 478 kW, 6x4 rigid lorry (2020–2023)

Scania S 660 B6x4

2022–2023 · 485 kW

37.5l/100 km

median; 34.3–39.1 across 22 declared configurations

Volvo FH, 478 kW, 6x4 rigid lorry (2020–2023)

2020–2023 · 478 kW

40.8l/100 km

median; 37.1–45.6 across 82 declared configurations

Scania S 660 B6x4 and Volvo FH, 478 kW, 6x4 rigid lorry (2020–2023) side by side
Specification	Scania S 660 B6x4	Volvo FH, 478 kW, 6x4 rigid lorry (2020–2023)
Vehicle form	Lorry (BA)Registered	Lorry (BA)Registered
Axle configuration	6×4Declared	6×4Declared
Registered new	2022–2023Registeredcentral 90% of records	2020–2023Registeredcentral 90% of records
Engine power	485 kWDeclared	478 kWDeclared
Engine displacement	16.4 litresDeclared	16.1 litresDeclared
Gearbox	automatedDeclared	automatedDeclared
Emission class	EURO VI ERegistered	Not recorded
Gross vehicle weight	30,000 kgRegistered	30,000–36,000 kgDeclaredmedian 32,000 kg, across 257 declared configurations
Kerb weight	16,430 kgRegistered	Not recorded
Wheelbase	6,100 mmRegistered	Not recorded
Overall length	10,120 mmRegistered	Not recorded
Overall height	4,000 mmRegistered	Not recorded
Declared fuel, long haul	37.5 l/100 km Declaredmedian; 34.3–39.1 l/100 km across 22 declared configurations	40.8 l/100 km Declaredmedian; 37.1–45.6 l/100 km across 82 declared configurations
CO₂ per tonne-km	50.9 g Declaredmedian; 46.5–52.9 g	55.34 g Declaredmedian; 50.29–61.9 g

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

What the numbers actually say

There is 3.3 l/100 km between these two (8.7%). 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 3,960 litres a year (£5,544). The declared figures for one of them alone span 8.5 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

S 660 B6x4 full specification FH, 478 kW, 6x4 rigid lorry (2020–2023) full specification The fuel ranking

Fuel over a year

120,000 km · assumed price

Scania S 660 B6x445,000 litres

£63,000 at the assumed price

Volvo FH, 478 kW, 6x4 rigid lorry (2020–2023)48,960 litres

£68,544 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.