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

Iveco S-Way, 309 kW, 4x2 rigid lorry vs MAN TGS 18.420 4x2, rigid lorry (2016–2020)

Iveco S-Way, 309 kW, 4x2 rigid lorry

2020–2023 · 309 kW

32.2l/100 km

median; 30.4–39.6 across 45 declared configurations

MAN TGS 18.420 4x2, rigid lorry (2016–2020)

2016–2020 · 309 kW

33.4l/100 km

median; 33.4–33.5 across 2 declared configurations

Iveco S-Way, 309 kW, 4x2 rigid lorry and MAN TGS 18.420 4x2, rigid lorry (2016–2020) side by side
Specification	Iveco S-Way, 309 kW, 4x2 rigid lorry	MAN TGS 18.420 4x2, rigid lorry (2016–2020)
Vehicle form	Lorry (BA)Registered	Lorry (BA)Registered
Axle configuration	4×2Declared	4×2Declared
Registered new	2020–2023Registeredcentral 90% of records	2016–2020Registeredcentral 90% of records
Engine power	309 kWDeclared	309 kWDeclared
Engine displacement	11.1 litresDeclared	12.4 litresDeclared
Gearbox	automated, manualDeclared	automated, manualDeclared
Emission class	Not recorded	EURO VI CRegistered
Gross vehicle weight	18,000–20,000 kgDeclaredmedian 20,000 kg, across 157 declared configurations	18,000–21,000 kgRegisteredmedian 20,500 kg, over 30 registrations
Kerb weight	Not recorded	9,035–12,670 kgRegisteredmedian 9,785 kg, over 30 registrations
Wheelbase	Not recorded	3,600–5,900 mmRegisteredmedian 5,700 mm, over 30 registrations
Overall length	Not recorded	5,980–11,500 mmRegisteredmedian 9,960 mm, over 30 registrations
Overall height	Not recorded	3,100–3,300 mmRegisteredmedian 3,100 mm, over 2 registrations
Declared fuel, long haul	32.2 l/100 km Declaredmedian; 30.4–39.6 l/100 km across 45 declared configurations	33.4 l/100 km Declaredmedian; 33.4–33.5 l/100 km across 2 declared configurations
CO₂ per tonne-km	60.2 g Declaredmedian; 56.74–73.9 g	62.5 g Declaredmedian

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

What the numbers actually say

There is 1.2 l/100 km between these two (3.7%). 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 1,440 litres a year (£2,016). The declared figures for one of them alone span 9.2 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

S-Way, 309 kW, 4x2 rigid lorry full specification TGS 18.420 4x2, rigid lorry (2016–2020) full specification The fuel ranking

Fuel over a year

120,000 km · assumed price

Iveco S-Way, 309 kW, 4x2 rigid lorry38,640 litres

£54,096 at the assumed price

MAN TGS 18.420 4x2, rigid lorry (2016–2020)40,080 litres

£56,112 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.