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

Scania R 650 A6x4, tractor unit (2019–2021) vs Scania R 650 B6x4, tractor unit (2020–2023)

Scania R 650 A6x4, tractor unit (2019–2021)

2019–2021 · 478 kW
40.4l/100 km
median; 36.4–44 across 15 declared configurations

Scania R 650 B6x4, tractor unit (2020–2023)

2020–2023 · 478 kW
39.1l/100 km
median; across 1 declared configurations
Scania R 650 A6x4, tractor unit (2019–2021) and Scania R 650 B6x4, tractor unit (2020–2023) side by side
SpecificationScania R 650 A6x4, tractor unit (2019–2021)Scania R 650 B6x4, tractor unit (2020–2023)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×4Declared6×4Declared
Registered new2019–2021Registeredcentral 90% of records2020–2023Registeredcentral 90% of records
Engine power478 kWDeclared478 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
Gearboxautomated, manualDeclaredautomated, manualDeclared
Emission classEURO 6, EURO VI, EURO VI C, EURO VI DRegisteredNot recorded
Gross vehicle weight27,000–36,000 kgRegisteredmedian 30,000 kg, across 4 type-approval versions and 14 records without one28,000–42,000 kgDeclaredmedian 30,000 kg, across 12 declared configurations
Kerb weight9,975–15,950 kgRegisteredmedian 10,525 kg, over 18 registrationsNot recorded
Wheelbase3,350–6,300 mmRegisteredmedian 4,500 mm, over 18 registrationsNot recorded
Overall length6,750–9,000 mmRegisteredmedian 6,910 mm, over 18 registrationsNot recorded
Overall height3,800–4,000 mmRegisteredmedian 3,950 mm, over 6 registrationsNot recorded
Declared fuel, long haul40.4 l/100 km Declaredmedian; 36.4–44 l/100 km across 15 declared configurations39.1 l/100 km Declaredmedian; across 1 declared configuration
CO₂ per tonne-km54.8 g Declaredmedian; 49.3–59.6 g52.9 g Declaredmedian

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

What the numbers actually say

There is 1.3 l/100 km between these two (3.3%). 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 7.6 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

R 650 A6x4, tractor unit (2019–2021) full specificationR 650 B6x4, tractor unit (2020–2023) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania R 650 A6x4, tractor unit (2019–2021)48,480 litres
£67,872 at the assumed price
Scania R 650 B6x4, tractor unit (2020–2023)46,920 litres
£65,688 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.