Comparison · 8×4 road tractor · construction at 12.9 t
Scania R 580 B8x4*4, road tractor (2020–2021) vs Scania R 650 B8x4*4, road tractor (2020–2021)
Scania R 580 B8x4*4, road tractor (2020–2021)
2020–2021 · 427 kW
46.2l/100 km
median; 44.6–48.3 across 19 declared configurations
Scania R 650 B8x4*4, road tractor (2020–2021)
2020–2021 · 478 kW
45.8l/100 km
median; 43.4–46.4 across 5 declared configurations
What the numbers actually say
There is 0.4 l/100 km between these two (0.8%). 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 480 litres a year (£672). The declared figures for one of them alone span 3.7 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 580 B8x4*4, road tractor (2020–2021)55,440 litres
£77,616 at the assumed price
Scania R 650 B8x4*4, road tractor (2020–2021)54,960 litres
£76,944 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.