2007 Audi S4 vs. 1999 Audi A6
To start off, 2007 Audi S4 is newer by 8 year(s). Which means there will be less support and parts availability for 1999 Audi A6. In addition, the cost of maintenance, including insurance, on 1999 Audi A6 would be higher. At 4,163 cc (8 cylinders), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (340 HP @ 7000 RPM) has 217 more horse power than 1999 Audi A6. (123 HP @ 5800 RPM). In normal driving conditions, 2007 Audi S4 should accelerate faster than 1999 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S4 weights approximately 85 kg more than 1999 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Audi A6. In wet, icy, snow, or gravel driving conditions, 2007 Audi S4 will offer significantly more control. 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, 2007 Audi S4 (410 Nm @ 3500 RPM) has 242 more torque (in Nm) than 1999 Audi A6. (168 Nm @ 3500 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A6.
Compare all specifications:
| 2007 Audi S4 | 1999 Audi A6 | |
| Make | Audi | Audi |
| Model | S4 | A6 |
| Year Released | 2007 | 1999 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1781 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 123 HP |
| Engine RPM | 7000 RPM | 5800 RPM |
| Torque | 410 Nm | 168 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Compression Ratio | 11.0:1 | 10.3:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1530 kg | 1445 kg |
| Vehicle Length | 4590 mm | 4800 mm |
| Vehicle Width | 1790 mm | 1820 mm |
| Vehicle Height | 1420 mm | 1460 mm |
| Wheelbase Size | 2660 mm | 2760 mm |
