2005 Audi S4 vs. 2002 Audi A8
To start off, 2005 Audi S4 is newer by 3 year(s). Which means there will be less support and parts availability for 2002 Audi A8. In addition, the cost of maintenance, including insurance, on 2002 Audi A8 would be higher. At 4,172 cc (8 cylinders), 2002 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 10 more horse power than 2002 Audi A8. (330 HP @ 6500 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2002 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2002 Audi A8 weights approximately 120 kg more than 2005 Audi S4.
Let's talk about torque, 2002 Audi A8 (430 Nm) has 20 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 2002 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2005 Audi S4 | 2002 Audi A8 | |
| Make | Audi | Audi |
| Model | S4 | A8 |
| Year Released | 2005 | 2002 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4172 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 340 HP | 330 HP |
| Engine RPM | 6300 RPM | 6500 RPM |
| Torque | 410 Nm | 430 Nm |
| Engine Bore Size | 85.1 mm | 84.6 mm |
| Engine Stroke Size | 93 mm | 93 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1735 kg | 1855 kg |
| Vehicle Length | 4550 mm | 5060 mm |
| Vehicle Width | 1770 mm | 1900 mm |
| Vehicle Height | 1430 mm | 1450 mm |
| Wheelbase Size | 2660 mm | 2950 mm |
| Fuel Consumption Highway | 11.2 L/100km | 8.7 L/100km |
| Fuel Consumption City | 15.7 L/100km | 17.5 L/100km |
| Fuel Consumption Overall | 13.8 L/100km | 11.9 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
