Comparison · 4×2 lorry · long haul at 14 t
DAF CF 340 FA vs Mercedes-Benz Arocs, 260 kW, 4x2 rigid lorry
DAF CF 340 FA
2018–2023 · 250–251 kW (median 250)
32l/100 km
median; 29.9–35.7 across 32 declared configurations
Mercedes-Benz Arocs, 260 kW, 4x2 rigid lorry
2020–2023 · 260 kW
34.1l/100 km
median; 32.2–39.7 across 28 declared configurations
What the numbers actually say
There is 2.1 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 2,520 litres a year (£3,528). The declared figures for one of them alone span 7.5 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 priceDAF CF 340 FA38,400 litres
£53,760 at the assumed price
Mercedes-Benz Arocs, 260 kW, 4x2 rigid lorry40,920 litres
£57,288 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.