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Comparison · 8×4 lorry · construction at 12.9 t

Scania S 660 B8x4*4 vs Scania S 770 B8x4*4

Scania S 660 B8x4*4

2021–2023 · 485 kW
43.5l/100 km
median; 41.2–45.8 across 10 declared configurations

Scania S 770 B8x4*4

2021–2022 · 566 kW
45.9l/100 km
median; 45.5–47.3 across 11 declared configurations
Scania S 660 B8x4*4 and Scania S 770 B8x4*4 side by side
SpecificationScania S 660 B8x4*4Scania S 770 B8x4*4
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration8×4Declared8×4Declared
Registered new2021–2023Registeredcentral 90% of records2021–2022Registeredcentral 90% of records
Engine power485 kWDeclared566 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Gross vehicle weight33,000–44,000 kgDeclaredmedian 37,000 kg, across 36 declared configurations33,000–42,000 kgDeclaredmedian 37,000 kg, across 32 declared configurations
Declared fuel, construction43.5 l/100 km Declaredmedian; 41.2–45.8 l/100 km across 10 declared configurations45.9 l/100 km Declaredmedian; 45.5–47.3 l/100 km across 11 declared configurations
CO₂ per tonne-km88.29 g Declaredmedian; 83.65–92.9 g93 g Declaredmedian; 92.29–95.9 g

Fuel and CO₂: construction at 12.9 t, 2022 declarations.

What the numbers actually say

There is 2.4 l/100 km between these two (5.5%). 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 2,880 litres a year (£4,032). The declared figures for one of them alone span 4.6 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

S 660 B8x4*4 full specificationS 770 B8x4*4 full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania S 660 B8x4*452,200 litres
£73,080 at the assumed price
Scania S 770 B8x4*455,080 litres
£77,112 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.