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

Iveco S-Way, 251 kW, 4x2 rigid lorry vs Volvo FMX, 251 kW, 4x2 rigid lorry

Iveco S-Way, 251 kW, 4x2 rigid lorry

2022–2023 · 251 kW

37.3l/100 km

median; 31.3–43.8 across 42 declared configurations

Lower declared fuel

Volvo FMX, 251 kW, 4x2 rigid lorry

2021–2023 · 251 kW

33l/100 km

median; 31.1–36.5 across 12 declared configurations

Iveco S-Way, 251 kW, 4x2 rigid lorry and Volvo FMX, 251 kW, 4x2 rigid lorry side by side
Specification	Iveco S-Way, 251 kW, 4x2 rigid lorry	Volvo FMX, 251 kW, 4x2 rigid lorry
Vehicle form	Lorry (BA)Registered	Lorry (BA)Registered
Axle configuration	4×2Declared	4×2Declared
Registered new	2022–2023Registeredcentral 90% of records	2021–2023Registeredcentral 90% of records
Engine power	251 kWDeclared	251 kWDeclared
Engine displacement	8.7 litresDeclared	10.8 litresDeclared
Gearbox	automated, automatic, manualDeclared	automated, automaticDeclared
Emission class	Not recorded	EURO VI ERegistered
Gross vehicle weight	20,000 kgDeclared	22,000 kgRegistered
Kerb weight	Not recorded	10,803 kgRegistered
Wheelbase	Not recorded	3,700 mmRegistered
Overall length	Not recorded	6,750 mmRegistered
Overall height	Not recorded	3,570 mmRegistered
Declared fuel, long haul	37.3 l/100 km Declaredmedian; 31.3–43.8 l/100 km across 42 declared configurations	33 l/100 km Declaredmedian; 31.1–36.5 l/100 km across 12 declared configurations
CO₂ per tonne-km	69.68 g Declaredmedian; 58.56–81.8 g	61.8 g Declaredmedian; 58.21–68.2 g

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

What the numbers actually say

The Volvo FMX, 251 kW, 4x2 rigid lorry declared 4.3 l/100 km less (13%) 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 5,160 litres a year, or £7,224. A gap this size is outside the 10% tolerance of declared figures.

S-Way, 251 kW, 4x2 rigid lorry full specification FMX, 251 kW, 4x2 rigid lorry full specification The fuel ranking

Fuel over a year

120,000 km · assumed price

Iveco S-Way, 251 kW, 4x2 rigid lorry44,760 litres

£62,664 at the assumed price

Volvo FMX, 251 kW, 4x2 rigid lorry39,600 litres

£55,440 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.