Comparison · 8×4 lorry · construction at 12.9 t

Scania R 650 B8x4*4, lorry (2020–2021) vs Scania R 660 B8x4/4, lorry (2021–2023)

Scania R 650 B8x4*4, lorry (2020–2021)

2020–2021 · 478 kW
46.3l/100 km
median; 41.5–52.9 across 54 declared configurations

Scania R 660 B8x4/4, lorry (2021–2023)

2021–2023 · 485 kW
43.7l/100 km
median; 43.1–44.6 across 7 declared configurations
Scania R 650 B8x4*4, lorry (2020–2021) and Scania R 660 B8x4/4, lorry (2021–2023) side by side
SpecificationScania R 650 B8x4*4, lorry (2020–2021)Scania R 660 B8x4/4, lorry (2021–2023)
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration8×4Declared8×4Declared
Registered new2020–2021Registeredcentral 90% of records2021–2023Registeredcentral 90% of records
Engine power478 kWDeclared485 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
Gearboxautomated, manualDeclaredautomatedDeclared
Emission classEURO VI C, EURO VI DRegisteredNot recorded
Gross vehicle weight33,000–38,000 kgRegisteredmedian 33,000 kg, over 3 registrations30,000–37,000 kgDeclaredmedian 36,000 kg, across 24 declared configurations
Kerb weight11,827–13,445 kgRegisteredmedian 12,075 kg, over 3 registrationsNot recorded
Wheelbase6,610–7,000 mmRegisteredmedian 6,800 mm, over 3 registrationsNot recorded
Overall length9,650–10,250 mmRegisteredmedian 9,850 mm, over 3 registrationsNot recorded
Overall height3,500–4,000 mmRegisteredmedian 3,950 mm, over 3 registrationsNot recorded
Declared fuel, construction46.3 l/100 km Declaredmedian; 41.5–52.9 l/100 km across 54 declared configurations43.7 l/100 km Declaredmedian; 43.1–44.6 l/100 km across 7 declared configurations
CO₂ per tonne-km93.9 g Declaredmedian; 84.2–107.3 g88.56 g Declaredmedian; 87.5–90.44 g

Fuel and CO₂: construction at 12.9 t, 2021 declarations.

What the numbers actually say

There is 2.6 l/100 km between these two (5.9%). 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 3,120 litres a year (£4,368). The declared figures for one of them alone span 11.4 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
Scania R 650 B8x4*4, lorry (2020–2021)55,560 litres
£77,784 at the assumed price
Scania R 660 B8x4/4, lorry (2021–2023)52,440 litres
£73,416 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.