AllTruckData
Comparison · 6×4 tractor unit · long haul at 19.3 t

Scania R 660 A6x4 vs Scania R 730 A6x4

Lower declared fuel

Scania R 660 A6x4

2021–2023 · 485 kW
34l/100 km
median; 31.7–38.9 across 83 declared configurations

Scania R 730 A6x4

2011–2021 · 537 kW
40.5l/100 km
median; 35.1–43.6 across 13 declared configurations
Scania R 660 A6x4 and Scania R 730 A6x4 side by side
SpecificationScania R 660 A6x4Scania R 730 A6x4
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×4Declared6×4Declared
Registered new2021–2023Registeredcentral 90% of records2011–2021Registeredcentral 90% of records
Engine power485 kWDeclared537 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI, EURO VI ERegisteredEURO 5, EURO 6, EURO V, EURO VI, EURO VI A, EURO VI CRegistered
Gross vehicle weight28,500–36,000 kgRegisteredmedian 30,000 kg, across 7 type-approval versions and 4 records without one27,000–35,000 kgRegisteredmedian 30,000 kg, across 2 type-approval versions and 10 records without one
Kerb weight10,003–15,108 kgRegisteredmedian 10,507 kg, over 11 registrations9,580–11,455 kgRegisteredmedian 10,400 kg, over 12 registrations
Wheelbase4,300–5,300 mmRegisteredmedian 4,700 mm, over 11 registrations4,050–5,250 mmRegisteredmedian 4,650 mm, over 12 registrations
Overall length6,670–7,560 mmRegisteredmedian 7,060 mm, over 11 registrations6,470–7,510 mmRegisteredmedian 6,910 mm, over 12 registrations
Overall height3,560–4,000 mmRegisteredmedian 3,760 mm, over 10 registrationsNot recorded
Declared fuel, long haul34 l/100 km Declaredmedian; 31.7–38.9 l/100 km across 83 declared configurations40.5 l/100 km Declaredmedian; 35.1–43.6 l/100 km across 13 declared configurations
CO₂ per tonne-km46.04 g Declaredmedian; 42.98–52.71 g54.9 g Declaredmedian; 47.7–59.1 g

Fuel and CO₂: long haul at 19.3 t, 2022 declarations.

What the numbers actually say

The Scania R 660 A6x4 declared 6.5 l/100 km less (19.1%) 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 7,800 litres a year, or £10,920. A gap this size is outside the 10% tolerance of declared figures.

R 660 A6x4 full specificationR 730 A6x4 full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania R 660 A6x440,800 litres
£57,120 at the assumed price
Scania R 730 A6x448,600 litres
£68,040 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.