median; 30.5–41.1 across 42 declared configurations
MAN TGS 18.520 4x2 and Mercedes-Benz Arocs, 390 kW, 4x2 tractor unit side by side
Specification
MAN TGS 18.520 4x2
Mercedes-Benz Arocs, 390 kW, 4x2 tractor unit
Vehicle form
Tractor unit (BC)Registered
Tractor unit (BC)Registered
Axle configuration
4×2Declared
4×2Declared
Registered new
2023Registeredcentral 90% of records
2020–2023Registeredcentral 90% of records
Engine power
382 kWDeclared
390 kWDeclared
Engine displacement
12.4 litresDeclared
12.8 litresDeclared
Gearbox
automated, manualDeclared
automatedDeclared
Emission class
EURO VI ERegistered
Not recorded
Gross vehicle weight
20,500 kgRegistered
18,000–20,500 kgDeclaredmedian 18,000 kg, across 100 declared configurations
Kerb weight
7,828 kgRegistered
Not recorded
Wheelbase
3,900 mmRegistered
Not recorded
Overall length
6,280 mmRegistered
Not recorded
Overall height
3,900 mmRegistered
Not recorded
Declared fuel, long haul
28.9 l/100 km Declaredmedian; 28.4–34 l/100 km across 37 declared configurations
36.5 l/100 km Declaredmedian; 30.5–41.1 l/100 km across 42 declared configurations
CO₂ per tonne-km
39.22 g Declaredmedian; 38.54–46.08 g
49.46 g Declaredmedian; 41.31–55.8 g
Fuel and CO₂: long haul at 19.3 t, 2022 declarations.
What the numbers actually say
The MAN TGS 18.520 4x2 declared 7.6 l/100 km less (26.2%) on the long haul at 19.3 t, 2022 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 9,120 litres a year, or £12,768. A gap this size is outside the 10% tolerance of declared figures.
