2005 Audi S4 vs. 1998 Audi A4
To start off, 2005 Audi S4 is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Audi A4. In addition, the cost of maintenance, including insurance, on 1998 Audi A4 would be higher. At 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 240 more horse power than 1998 Audi A4. (100 HP @ 5300 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1998 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 535 kg more than 1998 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 270 more torque (in Nm) than 1998 Audi A4. (140 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1998 Audi A4.
Compare all specifications:
| 2005 Audi S4 | 1998 Audi A4 | |
| Make | Audi | Audi |
| Model | S4 | A4 |
| Year Released | 2005 | 1998 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1595 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 340 HP | 100 HP |
| Engine RPM | 6300 RPM | 5300 RPM |
| Torque | 410 Nm | 140 Nm |
| Engine Bore Size | 85.1 mm | 81 mm |
| Engine Stroke Size | 93 mm | 77.5 mm |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1735 kg | 1200 kg |
| Vehicle Length | 4550 mm | 4480 mm |
| Vehicle Width | 1770 mm | 1740 mm |
| Vehicle Height | 1430 mm | 1420 mm |
| Wheelbase Size | 2660 mm | 2620 mm |
