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

Scania R 770 A6x4 vs Scania S 770 A6x4

Scania R 770 A6x4

2021–2023 · 566 kW
36.9l/100 km
median; 33.1–41.7 across 45 declared configurations

Scania S 770 A6x4

2021–2025 · 566 kW
35.6l/100 km
median; 33.6–41.9 across 45 declared configurations
Scania R 770 A6x4 and Scania S 770 A6x4 side by side
SpecificationScania R 770 A6x4Scania S 770 A6x4
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×4Declared6×4Declared
Registered new2021–2023Registeredcentral 90% of records2021–2025Registeredcentral 90% of records
Engine power566 kWDeclared566 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI ERegisteredEURO 6, EURO VI, EURO VI D, EURO VI ERegistered
Gross vehicle weight30,000–35,000 kgRegisteredmedian 30,000 kg, across 1 type-approval version and 1 record without one29,000–36,000 kgRegisteredmedian 35,000 kg, across 8 type-approval versions and 8 records without one
Kerb weight9,744–10,396 kgRegisteredmedian 9,744 kg, over 2 registrations9,990–12,278 kgRegisteredmedian 10,634 kg, over 16 registrations
Wheelbase4,500–4,700 mmRegisteredmedian 4,500 mm, over 2 registrations4,500–5,300 mmRegisteredmedian 4,500 mm, over 16 registrations
Overall length6,870–6,910 mmRegisteredmedian 6,870 mm, over 2 registrations6,800–7,570 mmRegisteredmedian 6,870 mm, over 16 registrations
Overall height3,450–3,840 mmRegisteredmedian 3,450 mm, over 2 registrations3,850–4,000 mmRegisteredmedian 3,990 mm, over 12 registrations
Declared fuel, long haul36.9 l/100 km Declaredmedian; 33.1–41.7 l/100 km across 45 declared configurations35.6 l/100 km Declaredmedian; 33.6–41.9 l/100 km across 45 declared configurations
CO₂ per tonne-km50 g Declaredmedian; 44.91–56.6 g48.32 g Declaredmedian; 45.58–56.84 g

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

What the numbers actually say

There is 1.3 l/100 km between these two (3.6%). 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 1,560 litres a year (£2,184). The declared figures for one of them alone span 8.6 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

R 770 A6x4 full specificationS 770 A6x4 full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania R 770 A6x444,280 litres
£61,992 at the assumed price
Scania S 770 A6x442,720 litres
£59,808 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.