Comparison · 4×2 lorry · long haul at 14 t

Iveco S-Way, 375 kW, 4x2 rigid lorry vs Volvo FM, 375 kW, 4x2 rigid lorry

Iveco S-Way, 375 kW, 4x2 rigid lorry

2020–2022 · 375 kW
34.5l/100 km
median; across 1 declared configurations
Lower declared fuel

Volvo FM, 375 kW, 4x2 rigid lorry

2019–2023 · 375 kW
30.8l/100 km
median; 28.8–33.9 across 11 declared configurations
Iveco S-Way, 375 kW, 4x2 rigid lorry and Volvo FM, 375 kW, 4x2 rigid lorry side by side
SpecificationIveco S-Way, 375 kW, 4x2 rigid lorryVolvo FM, 375 kW, 4x2 rigid lorry
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration4×2Declared4×2Declared
Registered new2020–2022Registeredcentral 90% of records2019–2023Registeredcentral 90% of records
Engine power375 kWDeclared375 kWDeclared
Engine displacement12.9 litresDeclared12.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Gross vehicle weight20,000 kgDeclared19,500–23,000 kgDeclaredmedian 21,000 kg, across 56 declared configurations
Declared fuel, long haul34.5 l/100 km Declaredmedian; across 1 declared configuration30.8 l/100 km Declaredmedian; 28.8–33.9 l/100 km across 11 declared configurations
CO₂ per tonne-km64.4 g Declaredmedian57.62 g Declaredmedian; 53.85–63.4 g

Fuel and CO₂: long haul at 14 t, 2022 declarations.

What the numbers actually say

The Volvo FM, 375 kW, 4x2 rigid lorry declared 3.7 l/100 km less (12%) on the long haul at 14 t, 2022 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 4,440 litres a year, or £6,216. A gap this size is outside the 10% tolerance of declared figures.

Fuel over a year

120,000 km · assumed price
Iveco S-Way, 375 kW, 4x2 rigid lorry41,400 litres
£57,960 at the assumed price
Volvo FM, 375 kW, 4x2 rigid lorry36,960 litres
£51,744 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.