2007 Audi S4 vs. 2009 Audi A8
To start off, 2009 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi S4. In addition, the cost of maintenance, including insurance, on 2007 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (339 HP @ 7000 RPM) has 17 more horse power than 2009 Audi A8. (322 HP @ 3750 RPM). In normal driving conditions, 2007 Audi S4 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 190 kg more than 2007 Audi S4.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 A8 (650 Nm @ 1600 RPM) has 240 more torque (in Nm) than 2007 Audi S4. (410 Nm @ 3500 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi S4.
Compare all specifications:
2007 Audi S4 | 2009 Audi A8 | |
Make | Audi | Audi |
Model | S4 | A8 |
Year Released | 2007 | 2009 |
Body Type | Station Wagon | Sedan |
Engine Position | Front | Front |
Engine Size | 4163 cc | 4134 cc |
Engine Cylinders | 8 cylinders | 8 cylinders |
Engine Type | V | V |
Valves per Cylinder | 5 valves | 4 valves |
Horse Power | 339 HP | 322 HP |
Engine RPM | 7000 RPM | 3750 RPM |
Torque | 410 Nm | 650 Nm |
Torque RPM | 3500 RPM | 1600 RPM |
Engine Bore Size | 84.6 mm | 83 mm |
Engine Stroke Size | 92.8 mm | 95.5 mm |
Fuel Type | Gasoline | Diesel |
Acceleration 0-100mph | 5.9 seconds | 5.9 seconds |
Drive Type | 4WD | 4WD |
Transmission Type | Automatic | Automatic |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 5 doors | 4 doors |
Vehicle Weight | 1755 kg | 1945 kg |
Vehicle Length | 4590 mm | 5070 mm |
Vehicle Width | 1730 mm | 1900 mm |
Vehicle Height | 1430 mm | 1450 mm |
Wheelbase Size | 2650 mm | 2950 mm |
Fuel Consumption Overall | 12.3 L/100km | 9.4 L/100km |
Fuel Tank Capacity | 63 L | 90 L |