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

Scania R 650 A6x2*4 vs Scania S 650 A6x2, tractor unit (2019–2021)

Scania R 650 A6x2*4

2019–2022 · 478 kW
32.6l/100 km
median; 32.6–34.1 across 2 declared configurations

Scania S 650 A6x2, tractor unit (2019–2021)

2019–2021 · 478 kW
35.2l/100 km
median; 34.5–37.8 across 3 declared configurations
Scania R 650 A6x2*4 and Scania S 650 A6x2, tractor unit (2019–2021) side by side
SpecificationScania R 650 A6x2*4Scania S 650 A6x2, tractor unit (2019–2021)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×2Declared6×2Declared
Registered new2019–2022Registeredcentral 90% of records2019–2021Registeredcentral 90% of records
Engine power478 kWDeclared478 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
Gearboxautomated, manualDeclaredautomatedDeclared
Emission classNot recordedEURO 6Registered
Gross vehicle weight27,000–28,000 kgDeclaredmedian 28,000 kg, across 13 declared configurations27,000 kgRegistered
Kerb weightNot recorded17,461 kgRegistered
WheelbaseNot recorded4,650 mmRegistered
Overall lengthNot recorded7,100 mmRegistered
Declared fuel, long haul32.6 l/100 km Declaredmedian; 32.6–34.1 l/100 km across 2 declared configurations35.2 l/100 km Declaredmedian; 34.5–37.8 l/100 km across 3 declared configurations
CO₂ per tonne-km44.2 g Declaredmedian; 44.2–46.2 g47.7 g Declaredmedian; 46.8–51.3 g

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

What the numbers actually say

There is 2.6 l/100 km between these two (7.9%). 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 3,120 litres a year (£4,368). The declared figures for one of them alone span 3.3 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

Fuel over a year

120,000 km · assumed price
Scania R 650 A6x2*439,120 litres
£54,768 at the assumed price
Scania S 650 A6x2, tractor unit (2019–2021)42,240 litres
£59,136 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.