2005 Audi A4 vs. 2007 Audi S8
To start off, 2007 Audi S8 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 5,204 cc (10 cylinders), 2007 Audi S8 is equipped with a bigger engine. In terms of performance, 2007 Audi S8 (444 HP @ 7000 RPM) has 227 more horse power than 2005 Audi A4. (217 HP @ 6300 RPM) In normal driving conditions, 2007 Audi S8 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S8 weights approximately 60 kg more than 2005 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2005 Audi A4. In wet, icy, snow, or gravel driving conditions, 2007 Audi S8 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 S8 (540 Nm @ 3500 RPM) has 240 more torque (in Nm) than 2005 Audi A4. (300 Nm @ 3200 RPM). This means 2007 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2007 Audi S8 | |
| Make | Audi | Audi |
| Model | A4 | S8 |
| Year Released | 2005 | 2007 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2983 cc | 5204 cc |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 217 HP | 444 HP |
| Engine RPM | 6300 RPM | 7000 RPM |
| Torque | 300 Nm | 540 Nm |
| Torque RPM | 3200 RPM | 3500 RPM |
| Top Speed | 229 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.8 seconds | 5.1 seconds |
| Drive Type | Front | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1880 kg | 1940 kg |
| Wheelbase Size | 2850 mm | 2950 mm |
| Fuel Consumption Overall | 9.7 L/100km | 13.6 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
