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

Scania R 650 A4x2 vs Scania R 660 A4x2

Scania R 650 A4x2

2019–2021 · 478 kW
32.8l/100 km
median; 31.6–38.5 across 25 declared configurations
Lower declared fuel

Scania R 660 A4x2

2021–2024 · 485 kW
29.5l/100 km
median; 27.6–32.1 across 92 declared configurations
Scania R 650 A4x2 and Scania R 660 A4x2 side by side
SpecificationScania R 650 A4x2Scania R 660 A4x2
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration4×2Declared4×2Declared
Registered new2019–2021Registeredcentral 90% of records2021–2024Registeredcentral 90% of records
Engine power478 kWDeclared485 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
Gearboxautomated, manualDeclaredautomatedDeclared
Emission classEURO VI C, EURO VI DRegisteredEURO VI D, EURO VI ERegistered
Gross vehicle weight18,000–22,000 kgRegisteredmedian 20,500 kg, across 16 type-approval versions and 4 records without one19,000–23,000 kgRegisteredmedian 21,000 kg, across 21 type-approval versions and 3 records without one
Kerb weight7,844–9,347 kgRegisteredmedian 8,914 kg, over 32 registrations8,210–9,430 kgRegisteredmedian 8,689 kg, over 36 registrations
Wheelbase3,600–3,950 mmRegisteredmedian 3,750 mm, over 32 registrations3,750–3,950 mmRegisteredmedian 3,950 mm, over 36 registrations
Overall length5,810–6,320 mmRegisteredmedian 6,120 mm, over 32 registrations5,960–8,200 mmRegisteredmedian 6,160 mm, over 36 registrations
Overall height3,510–4,000 mmRegisteredmedian 4,000 mm, over 8 registrations3,460–4,000 mmRegisteredmedian 3,900 mm, over 34 registrations
Declared fuel, long haul32.8 l/100 km Declaredmedian; 31.6–38.5 l/100 km across 25 declared configurations29.5 l/100 km Declaredmedian; 27.6–32.1 l/100 km across 92 declared configurations
CO₂ per tonne-km44.4 g Declaredmedian; 42.8–52.1 g40.03 g Declaredmedian; 37.48–43.52 g

Fuel and CO₂: long haul at 19.3 t, 2021 declarations.

What the numbers actually say

The Scania R 660 A4x2 declared 3.3 l/100 km less (11.1%) on the long haul at 19.3 t, 2021 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 3,960 litres a year, or £5,544. A gap this size is outside the 10% tolerance of declared figures.

Fuel over a year

120,000 km · assumed price
Scania R 650 A4x239,360 litres
£55,104 at the assumed price
Scania R 660 A4x235,400 litres
£49,560 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.