Comparison · 6×2 tractor unit · long haul at 19.3 t
Scania R 650 A6x2, tractor unit (2019–2021) vs Scania S 650 A6x2/2, tractor unit (2019–2022)
Scania R 650 A6x2, tractor unit (2019–2021)
2019–2021 · 478 kW
33.7l/100 km
median; 32.3–38.1 across 22 declared configurations
Scania S 650 A6x2/2, tractor unit (2019–2022)
2019–2022 · 478 kW
32.4l/100 km
median; 32.3–33.8 across 10 declared configurations
What the numbers actually say
There is 1.3 l/100 km between these two (4%). 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 5.8 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 priceScania R 650 A6x2, tractor unit (2019–2021)40,440 litres
£56,616 at the assumed price
Scania S 650 A6x2/2, tractor unit (2019–2022)38,880 litres
£54,432 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.