Comparison · 6×2 tractor unit · long haul at 19.3 t
Scania R 450 A6x2/2, tractor unit (2019–2022) vs Scania S 450 A6x2/4, tractor unit (2019–2022)
Scania R 450 A6x2/2, tractor unit (2019–2022)
2019–2022 · 331 kW
29.6l/100 km
median; 29.6–30.5 across 2 declared configurations
Scania S 450 A6x2/4, tractor unit (2019–2022)
2019–2022 · 331 kW
29.8l/100 km
median; 29.5–30.9 across 10 declared configurations
What the numbers actually say
There is 0.2 l/100 km between these two (0.6%). 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 240 litres a year (£336). The declared figures for one of them alone span 1.4 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 450 A6x2/2, tractor unit (2019–2022)35,520 litres
£49,728 at the assumed price
Scania S 450 A6x2/4, tractor unit (2019–2022)35,760 litres
£50,064 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.