1998 Audi A6 vs. 2006 Audi S4
To start off, 2006 Audi S4 is newer by 8 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), 2006 Audi S4 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (340 HP @ 7000 RPM) has 202 more horse power than 1998 Audi A6. (138 HP @ 4000 RPM) In normal driving conditions, 2006 Audi S4 should accelerate faster than 1998 Audi A6.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than 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, 2006 Audi S4 (410 Nm @ 3500 RPM) has 145 more torque (in Nm) than 1998 Audi A6. (265 Nm @ 1900 RPM). This means 2006 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 | 2006 Audi S4 | |
| Make | Audi | Audi |
| Model | A6 | S4 |
| Year Released | 1998 | 2006 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2459 cc | 4163 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 138 HP | 340 HP |
| Engine RPM | 4000 RPM | 7000 RPM |
| Torque | 265 Nm | 410 Nm |
| Torque RPM | 1900 RPM | 3500 RPM |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 4800 mm | 4590 mm |
| Vehicle Width | 1820 mm | 1790 mm |
| Vehicle Height | 1460 mm | 1420 mm |
| Wheelbase Size | 2760 mm | 2660 mm |
