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 4,161 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 69 more horse power than 2002 Audi A8. (271 HP @ 3750 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 100 kg more than 2005 Audi S4.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 185 more torque (in Nm) than 2002 Audi A8. (225 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2002 Audi A8.
Compare all specifications:
| 2005 Audi S4 | 2002 Audi A8 | |
| Make | Audi | Audi |
| Model | S4 | A8 |
| Year Released | 2005 | 2002 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 3936 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 271 HP |
| Engine RPM | 6300 RPM | 3750 RPM |
| Torque | 410 Nm | 225 Nm |
| Engine Bore Size | 85 mm | 81 mm |
| Engine Stroke Size | 93 mm | 95.5 mm |
| Engine Compression Ratio | 11.0:1 | 18.0:1 |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1840 kg | 1940 kg |
| Vehicle Length | 4580 mm | 5060 mm |
| Vehicle Width | 1780 mm | 1900 mm |
| Vehicle Height | 1400 mm | 1450 mm |
| Wheelbase Size | 2660 mm | 2950 mm |
| Fuel Consumption Overall | 11.8 L/100km | 9.7 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
