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

Iveco Stralis, 309 kW, 4x2 rigid lorry vs MAN TGX 18.420 4x2, rigid lorry (2017–2019)

Iveco Stralis, 309 kW, 4x2 rigid lorry

2019–2020 · 309 kW

34.3l/100 km

median; 33–37 across 4 declared configurations

MAN TGX 18.420 4x2, rigid lorry (2017–2019)

2017–2019 · 309 kW

33l/100 km

median; 31.5–35 across 67 declared configurations

Iveco Stralis, 309 kW, 4x2 rigid lorry and MAN TGX 18.420 4x2, rigid lorry (2017–2019) side by side
Specification	Iveco Stralis, 309 kW, 4x2 rigid lorry	MAN TGX 18.420 4x2, rigid lorry (2017–2019)
Vehicle form	Lorry (BA)Registered	Lorry (BA)Registered
Axle configuration	4×2Declared	4×2Declared
Registered new	2019–2020Registeredcentral 90% of records	2017–2019Registeredcentral 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 6, EURO VI A, EURO VI CRegistered
Gross vehicle weight	18,000–20,000 kgDeclaredmedian 20,000 kg, across 38 declared configurations	15,000–21,000 kgRegisteredmedian 20,100 kg, over 15 registrations
Kerb weight	Not recorded	8,892–13,829 kgRegisteredmedian 9,735 kg, over 15 registrations
Wheelbase	Not recorded	3,600–5,500 mmRegisteredmedian 5,100 mm, over 15 registrations
Overall length	Not recorded	7,350–10,130 mmRegisteredmedian 9,200 mm, over 15 registrations
Overall height	Not recorded	4,000 mmRegistered
Declared fuel, long haul	34.3 l/100 km Declaredmedian; 33–37 l/100 km across 4 declared configurations	33 l/100 km Declaredmedian; 31.5–35 l/100 km across 67 declared configurations
CO₂ per tonne-km	64.1 g Declaredmedian; 61.7–69.2 g	61.6 g Declaredmedian; 58.9–65.5 g

Fuel and CO₂: long haul at 14 t, 2020 declarations.

What the numbers actually say

There is 1.3 l/100 km between these two (3.9%). 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 1,560 litres a year (£2,184). The declared figures for one of them alone span 4 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

Stralis, 309 kW, 4x2 rigid lorry full specification TGX 18.420 4x2, rigid lorry (2017–2019) full specification

Fuel over a year

120,000 km · assumed price

Iveco Stralis, 309 kW, 4x2 rigid lorry41,160 litres

£57,624 at the assumed price

MAN TGX 18.420 4x2, rigid lorry (2017–2019)39,600 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.