2009 Audi S5 vs. 2004 Audi A6
To start off, 2009 Audi S5 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Audi A6. In addition, the cost of maintenance, including insurance, on 2004 Audi A6 would be higher. At 4,163 cc (8 cylinders), 2009 Audi S5 is equipped with a bigger engine. In terms of performance, 2009 Audi S5 (354 HP @ 6800 RPM) has 176 more horse power than 2004 Audi A6. (178 HP @ 3300 RPM). In normal driving conditions, 2009 Audi S5 should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi S5 weights approximately 75 kg more than 2004 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi S5 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Audi A6. In wet, icy, snow, or gravel driving conditions, 2009 Audi S5 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, 2009 Audi S5 (441 Nm @ 3500 RPM) has 71 more torque (in Nm) than 2004 Audi A6. (370 Nm @ 1400 RPM). This means 2009 Audi S5 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A6.
Compare all specifications:
| 2009 Audi S5 | 2004 Audi A6 | |
| Make | Audi | Audi |
| Model | S5 | A6 |
| Year Released | 2009 | 2004 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2698 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 354 HP | 178 HP |
| Engine RPM | 6800 RPM | 3300 RPM |
| Torque | 441 Nm | 370 Nm |
| Torque RPM | 3500 RPM | 1400 RPM |
| Engine Bore Size | 84.5 mm | 83 mm |
| Engine Stroke Size | 92.8 mm | 83.1 mm |
| Engine Compression Ratio | 12.5:1 | 17.0:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 249 km/hour | 225 km/hour |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1770 kg | 1695 kg |
| Vehicle Length | 4640 mm | 4940 mm |
| Vehicle Width | 1990 mm | 1860 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2760 mm | 2950 mm |
| Fuel Consumption Highway | 11.2 L/100km | 5.4 L/100km |
| Fuel Consumption City | 16.8 L/100km | 9.8 L/100km |
| Fuel Consumption Overall | 14.7 L/100km | 7 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
