2005 Audi A6 vs. 2008 Audi S4
To start off, 2008 Audi S4 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi A6. In addition, the cost of maintenance, including insurance, on 2005 Audi A6 would be higher. At 4,163 cc (8 cylinders), 2005 Audi A6 is equipped with a bigger engine. In terms of performance, 2008 Audi S4 (340 HP @ 7000 RPM) has 5 more horse power than 2005 Audi A6. (335 HP @ 4000 RPM) In normal driving conditions, 2008 Audi S4 should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 175 kg more than 2008 Audi S4.
Because 2008 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Audi A6. In wet, icy, snow, or gravel driving conditions, 2008 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, 2005 Audi A6 (420 Nm) has 10 more torque (in Nm) than 2008 Audi S4. (410 Nm). This means 2005 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi S4.
Compare all specifications:
| 2005 Audi A6 | 2008 Audi S4 | |
| Make | Audi | Audi |
| Model | A6 | S4 |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4161 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 335 HP | 340 HP |
| Engine RPM | 4000 RPM | 7000 RPM |
| Torque | 420 Nm | 410 Nm |
| Engine Bore Size | 85 mm | 84.5 mm |
| Engine Stroke Size | 93 mm | 92.8 mm |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1880 kg | 1705 kg |
| Vehicle Length | 4920 mm | 4590 mm |
| Vehicle Width | 2020 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2650 mm |
| Fuel Consumption Overall | 11.8 L/100km | 12.3 L/100km |
| Fuel Tank Capacity | 80 L | 63 L |
