Comparison · 8×4 road tractor · construction at 12.9 t
Scania R 650 B8x4*4, road tractor (2020–2021) vs Scania R 660 B8x4*4, road tractor (2021–2023)
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
Scania R 660 B8x4*4, road tractor (2021–2023)
2021–2023 · 485 kW
43l/100 km
median; 39.6–45.8 across 43 declared configurations
What the numbers actually say
There is 2.8 l/100 km between these two (6.5%). 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 3,360 litres a year (£4,704). The declared figures for one of them alone span 6.2 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 B8x4*4, road tractor (2020–2021)54,960 litres
£76,944 at the assumed price
Scania R 660 B8x4*4, road tractor (2021–2023)51,600 litres
£72,240 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.