Comparison · 4×2 tractor unit · long haul at 19.3 t
Scania P 500 A4x2, tractor unit (2019–2023) vs Volvo FM, 375 kW, 4x2 tractor unit (2019–2023)
Scania P 500 A4x2, tractor unit (2019–2023)
2019–2023 · 368 kW
29.1l/100 km
median; 25.7–34.6 across 10 declared configurations
Volvo FM, 375 kW, 4x2 tractor unit (2019–2023)
2019–2023 · 375 kW
31.4l/100 km
median; 28.1–39.1 across 68 declared configurations
What the numbers actually say
There is 2.3 l/100 km between these two (7.9%). 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 2,760 litres a year (£3,864). The declared figures for one of them alone span 11 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 P 500 A4x2, tractor unit (2019–2023)34,920 litres
£48,888 at the assumed price
Volvo FM, 375 kW, 4x2 tractor unit (2019–2023)37,680 litres
£52,752 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.