AllTruckData
Comparison · 6×4 road tractor · long haul at 19.3 t

Scania R 660 B6x4, road tractor (2022–2023) vs Scania R 770 B6x4, road tractor (2021–2023)

Scania R 660 B6x4, road tractor (2022–2023)

2022–2023 · 485 kW
38.1l/100 km
median; 36.5–41.7 across 16 declared configurations

Scania R 770 B6x4, road tractor (2021–2023)

2021–2023 · 566 kW
40.8l/100 km
median; 40–42.4 across 5 declared configurations
Scania R 660 B6x4, road tractor (2022–2023) and Scania R 770 B6x4, road tractor (2021–2023) side by side
SpecificationScania R 660 B6x4, road tractor (2022–2023)Scania R 770 B6x4, road tractor (2021–2023)
Vehicle formRoad tractor (BD)RegisteredRoad tractor (BD)Registered
Axle configuration6×4Declared6×4Declared
Registered new2022–2023Registeredcentral 90% of records2021–2023Registeredcentral 90% of records
Engine power485 kWDeclared566 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Gross vehicle weight29,000–35,000 kgDeclaredmedian 30,000 kg, across 24 declared configurations29,000–42,000 kgDeclaredmedian 30,000 kg, across 22 declared configurations
Declared fuel, long haul38.1 l/100 km Declaredmedian; 36.5–41.7 l/100 km across 16 declared configurations40.8 l/100 km Declaredmedian; 40–42.4 l/100 km across 5 declared configurations
CO₂ per tonne-km51.68 g Declaredmedian; 49.46–56.5 g55.36 g Declaredmedian; 54.19–57.48 g

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

What the numbers actually say

There is 2.7 l/100 km between these two (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 3,240 litres a year (£4,536). The declared figures for one of them alone span 5.2 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

R 660 B6x4, road tractor (2022–2023) full specificationR 770 B6x4, road tractor (2021–2023) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania R 660 B6x4, road tractor (2022–2023)45,720 litres
£64,008 at the assumed price
Scania R 770 B6x4, road tractor (2021–2023)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.