2009 Audi S8 vs. 2008 Audi S4
To start off, 2009 Audi S8 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi S4. In addition, the cost of maintenance, including insurance, on 2008 Audi S4 would be higher. At 5,204 cc (10 cylinders), 2009 Audi S8 is equipped with a bigger engine. In terms of performance, 2009 Audi S8 (450 HP @ 7000 RPM) has 110 more horse power than 2008 Audi S4. (340 HP @ 7000 RPM). In normal driving conditions, 2009 Audi S8 should accelerate faster than 2008 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi S4 weights approximately 580 kg more than 2009 Audi S8.
With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2009 Audi S8 (540 Nm @ 3500 RPM) has 130 more torque (in Nm) than 2008 Audi S4. (410 Nm @ 3500 RPM). This means 2009 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi S4.
Compare all specifications:
2009 Audi S8 | 2008 Audi S4 | |
Make | Audi | Audi |
Model | S8 | S4 |
Year Released | 2009 | 2008 |
Body Type | Sedan | Station Wagon |
Engine Position | Front | Front |
Engine Size | 5204 cc | 4163 cc |
Engine Cylinders | 10 cylinders | 8 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 5 valves |
Horse Power | 450 HP | 340 HP |
Engine RPM | 7000 RPM | 7000 RPM |
Torque | 540 Nm | 410 Nm |
Torque RPM | 3500 RPM | 3500 RPM |
Fuel Type | Gasoline | Gasoline |
Acceleration 0-100mph | 5.1 seconds | 5.9 seconds |
Drive Type | AWD | 4WD |
Transmission Type | Automatic | Automatic |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 5 doors |
Vehicle Weight | 1175 kg | 1755 kg |
Vehicle Length | 5070 mm | 4590 mm |
Vehicle Width | 1900 mm | 1730 mm |
Vehicle Height | 1430 mm | 1430 mm |
Wheelbase Size | 2950 mm | 2650 mm |
Fuel Consumption Overall | 15.8 L/100km | 12.3 L/100km |
Fuel Tank Capacity | 90 L | 63 L |