Comparison · 4×2 tractor unit · long haul at 19.3 t

MAN TGX 18.500 4x2, tractor unit (2019–2020) vs Mercedes-Benz Actros, 375 kW, 4x2 tractor unit (2020–2021)

MAN TGX 18.500 4x2, tractor unit (2019–2020)

2019–2020 · 368 kW
32.8l/100 km
median; 31.4–36.5 across 54 declared configurations

Mercedes-Benz Actros, 375 kW, 4x2 tractor unit (2020–2021)

2020–2021 · 375 kW
31.7l/100 km
median; 29.5–40.7 across 1,614 declared configurations
MAN TGX 18.500 4x2, tractor unit (2019–2020) and Mercedes-Benz Actros, 375 kW, 4x2 tractor unit (2020–2021) side by side
SpecificationMAN TGX 18.500 4x2, tractor unit (2019–2020)Mercedes-Benz Actros, 375 kW, 4x2 tractor unit (2020–2021)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration4×2Declared4×2Declared
Registered new2019–2020Registeredcentral 90% of records2020–2021Registeredcentral 90% of records
Engine power368 kWDeclared375 kWDeclared
Engine displacement12.4 litresDeclared12.8 litresDeclared
Gearboxautomated, manualDeclaredautomatedDeclared
Emission classEURO 6, EURO VI, EURO VI CRegisteredEURO 6, EURO V, EURO VI, EURO VI A, EURO VI C, EURO VI D, EURO VI ERegistered
Gross vehicle weight18,000–21,000 kgRegisteredmedian 20,500 kg, across 27 type-approval versions and 54 records without one18,000–21,500 kgRegisteredmedian 19,000 kg, across 19 type-approval versions and 21 records without one
Kerb weight5,900–9,483 kgRegisteredmedian 7,983 kg, over 255 registrations7,693–8,560 kgRegisteredmedian 8,381 kg, over 49 registrations
Wheelbase3,550–3,900 mmRegisteredmedian 3,600 mm, over 255 registrations3,700–4,000 mmRegisteredmedian 3,850 mm, over 49 registrations
Overall length5,800–6,280 mmRegisteredmedian 6,000 mm, over 255 registrations6,000–6,500 mmRegisteredmedian 6,310 mm, over 49 registrations
Overall height3,590–4,000 mmRegisteredmedian 3,900 mm, over 133 registrations3,900–4,000 mmRegisteredmedian 3,910 mm, over 5 registrations
Declared fuel, long haul32.8 l/100 km Declaredmedian; 31.4–36.5 l/100 km across 54 declared configurations31.7 l/100 km Declaredmedian; 29.5–40.7 l/100 km across 1,614 declared configurations
CO₂ per tonne-km44.4 g Declaredmedian; 42.6–49.4 g43 g Declaredmedian; 40.1–55.1 g

Fuel and CO₂: long haul at 19.3 t, 2020 declarations.

What the numbers actually say

There is 1.1 l/100 km between these two (3.4%). 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 1,320 litres a year (£1,848). The declared figures for one of them alone span 11.2 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 price
MAN TGX 18.500 4x2, tractor unit (2019–2020)39,360 litres
£55,104 at the assumed price
Mercedes-Benz Actros, 375 kW, 4x2 tractor unit (2020–2021)38,040 litres
£53,256 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.