Comparison · 6×2 lorry · long haul at 19.3 t
Scania R 650 B6x2*4 vs Scania S 650 B6x2
What the numbers actually say
There is 0.3 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 360 litres a year (£504). The declared figures for one of them alone span 3.6 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 B6x2*444,640 litres
£62,496 at the assumed price
Scania S 650 B6x245,000 litres
£63,000 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.