2005 Audi A4 vs. 2002 Audi S4
To start off, 2005 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2002 Audi S4. In addition, the cost of maintenance, including insurance, on 2002 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2002 Audi S4 is equipped with a bigger engine. In terms of performance, 2002 Audi S4 (339 HP @ 7000 RPM) has 211 more horse power than 2005 Audi A4. (128 HP @ 4000 RPM) In normal driving conditions, 2002 Audi S4 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2002 Audi S4 weights approximately 235 kg more than 2005 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2002 Audi S4 (410 Nm @ 3500 RPM) has 100 more torque (in Nm) than 2005 Audi A4. (310 Nm @ 1900 RPM). This means 2002 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2002 Audi S4 | |
| Make | Audi | Audi |
| Model | A4 | S4 |
| Year Released | 2005 | 2002 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 4163 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 128 HP | 339 HP |
| Engine RPM | 4000 RPM | 7000 RPM |
| Torque | 310 Nm | 410 Nm |
| Torque RPM | 1900 RPM | 3500 RPM |
| Engine Bore Size | 79.5 mm | 84.6 mm |
| Engine Stroke Size | 95.5 mm | 92.8 mm |
| Engine Compression Ratio | 19.0:1 | 11.0:1 |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1485 kg | 1720 kg |
| Vehicle Length | 4550 mm | 4580 mm |
| Vehicle Width | 1780 mm | 1790 mm |
| Vehicle Height | 1430 mm | 1450 mm |
| Wheelbase Size | 2580 mm | 2660 mm |
| Fuel Tank Capacity | 66 L | 66 L |
