1998 Audi A6 vs. 2004 Audi S4
To start off, 2004 Audi S4 is newer by 6 year(s). Which means there will be less support and parts availability for 1998 Audi A6. In addition, the cost of maintenance, including insurance, on 1998 Audi A6 would be higher. At 4,163 cc (8 cylinders), 2004 Audi S4 is equipped with a bigger engine. In terms of performance, 2004 Audi S4 (340 HP @ 6200 RPM) has 192 more horse power than 1998 Audi A6. (148 HP @ 5700 RPM) In normal driving conditions, 2004 Audi S4 should accelerate faster than 1998 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi S4 weights approximately 515 kg more than 1998 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2004 Audi S4 (411 Nm) has 201 more torque (in Nm) than 1998 Audi A6. (210 Nm). This means 2004 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1998 Audi A6.
Compare all specifications:
| 1998 Audi A6 | 2004 Audi S4 | |
| Make | Audi | Audi |
| Model | A6 | S4 |
| Year Released | 1998 | 2004 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 4163 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 148 HP | 340 HP |
| Engine RPM | 5700 RPM | 6200 RPM |
| Torque | 210 Nm | 411 Nm |
| Engine Bore Size | 81 mm | 85 mm |
| Engine Stroke Size | 86.4 mm | 93 mm |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1380 kg | 1895 kg |
| Vehicle Length | 4800 mm | 4580 mm |
| Vehicle Width | 1820 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1400 mm |
| Wheelbase Size | 2850 mm | 2770 mm |
| Fuel Consumption Overall | 13.2 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
