It is powered by a naturally aspirated engine of 4.4 litre capacity. This unit features double overhead camshaft valve gear, a 60 degree V 8 cylinder layout, and 4 valves per cylinder. It develops 311 bhp (315 PS/232 kW) of power at 5950 rpm, and maximum torque of 439 N·m (324 lb·ft/44.8 kgm) at 3950 rpm.
This power is supplied to the wheels via a 6 speed automatic gearbox.
It weighs a stated 1742 kg at the kerb.
The Volvo S80 4.4 V8 is said to be able to manage a top speed of 250 km/h (155 mph), stated fuel consumption is 18.0/8.3/11.9 l/100km urban/extra-urban/combined, and carbon dioxide emissions are 284.0 g/km.
2006 VOLVO S80 4.4 V8 DATA
bodywork
body type 4/5 seater sedan/saloon
number of doors 4
designer
dimensions & weights
mm inches
wheelbase 2836 111.7
track/tread (front) 1588 62.5
track/tread (rear) 1585 62.4
length 4850 190.9
width 1860 73.2
height 1488 58.6
ground clearance
length:wheelbase ratio 1.71
kerb weight 1742 kg 3840 lb
weight distribution 61.5 % front
fuel tank capacity 70 litres 15.4 UK Gal 18.5 US Gal
aerodynamics
drag coefficient 0.29
frontal area 2.34 m²
cda 0.68
engine
engine type naturally aspirated petrol
engine manufacturer Volvo
engine code
cylinders V 8 in 60° vee
capacity 4.4 litre
4414 cc
(269.359 cu in)
bore × stroke 94 × 79.5 mm
3.7 × 3.13 in
bore/stroke ratio 1.18
double overhead camshaft (DOHC)
4 valves per cylinder
32 valves in total
maximum power output 315 PS (311 bhp) (232 kW)
at 5950 rpm
specific output 70.5 bhp/litre
1.15 bhp/cu in
maximum torque 439 Nm (324 ft·lb) (44.8 kgm)
at 3950 rpm
specific torque 99.46 Nm/litre
1.2 ft·lb/cu3
engine construction
sump wet sumped
compression ratio 10.4:1
fuel system EFI
bmep (brake mean effective pressure) 1249.8 kPa (181.3 psi)
maximum rpm 6500 rpm
crankshaft bearings 5
engine coolant Water
unitary capacity 551.75 cc
aspiration Normal
compressor N/A
intercooler None
catalytic converter Y
performance
acceleration 0-80km/h (50mph) 4.9 s
acceleration 0-60mph
acceleration 0-100km/h 7 s
acceleration 0-160km/h (100mph) 16.00 s
standing quarter-mile 14.9 s
@ 96.3 mph
standing kilometre
maximum speed 250 km/h (155 mph)
power-to-weight ratio 181.01 PS/g
133.13 kW/g
178.53 bhp/ton
0.08 bhp/lb
weight-to-power ratio 7.51 kg/kW
12.55 lb/bhp
fuel consumption
fuel consumption 18.0/8.3/11.9 l/100km urban/extra-urban/combined
universal consumption (calculated from the above)
litres per 100km 18.0/8.3/11.9 l/100km urban/extra-urban/combined
km per litre 5.6/12.0/8.4 km/l urban/extra-urban/combined
uk mpg 15.7/34.0/23.7 UK MPG urban/extra-urban/combined
us mpg 13.1/28.3/19.8 US MPG urban/extra-urban/combined
carbon dioxide emissions 284.0 g/km
carfolio calculated co2 ? 276.08 g/km
ved band (uk) M
co2 effizienz (de)
chassis
engine position front
engine layout transverse
drive wheels all wheel drive
torque split
steering rack & pinion VPAS
turns lock-to-lock
turning circle
front suspension I.MS.CS.ARB.
rear suspension I.MultiLi.CS.ARB.
wheel size front 8J x 18
wheel size rear 8J x 18
tyres front 245/40 ZR 18
tyres rear 245/40 ZR 18
brakes f/r VeDi/VeDi-S-ABS
front brake diameter 336 mm
rear brake diameter 305 mm
gearbox 6 speed automatic
top gear ratio 0.69
final drive ratio 3.33
general
carfolio.com id 140822
production total
model code
model family
rac rating 43.8http://www.carfolio.com/specifications/models/car/?car=140822
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But either way you have my vote on this too 
