2007 Audi S8 vs. 2005 Audi A4
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 (450 HP @ 7000 RPM) has 289 more horse power than 2005 Audi A4. (161 HP @ 4000 RPM). In normal driving conditions, 2007 Audi S8 should accelerate faster than 2005 Audi A4.
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 (541 Nm @ 3500 RPM) has 191 more torque (in Nm) than 2005 Audi A4. (350 Nm @ 1500 RPM). This means 2007 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4. 2007 Audi S8 has automatic transmission and 2005 Audi A4 has manual transmission. 2005 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Audi S8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Audi S8 | 2005 Audi A4 | |
| Make | Audi | Audi |
| Model | S8 | A4 |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 2393 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 161 HP |
| Engine RPM | 7000 RPM | 4000 RPM |
| Torque | 541 Nm | 350 Nm |
| Torque RPM | 3500 RPM | 1500 RPM |
| Engine Bore Size | 84.5 mm | 78.3 mm |
| Engine Stroke Size | 92.8 mm | 86.4 mm |
| Fuel Type | Diesel | Diesel |
| Drive Type | AWD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 5070 mm | 4550 mm |
| Vehicle Width | 1900 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1430 mm |
| Wheelbase Size | 2950 mm | 2660 mm |
| Fuel Consumption Overall | 13.8 L/100km | 7.2 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
