2009 Audi A4 vs. 2007 Audi S8
To start off, 2009 Audi A4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi S8. In addition, the cost of maintenance, including insurance, on 2007 Audi S8 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 282 more horse power than 2009 Audi A4. (168 HP @ 6000 RPM) In normal driving conditions, 2007 Audi S8 should accelerate faster than 2009 Audi A4.
Because 2007 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2009 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 311 more torque (in Nm) than 2009 Audi A4. (230 Nm @ 3200 RPM). This means 2007 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4. 2007 Audi S8 has automatic transmission and 2009 Audi A4 has manual transmission. 2009 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:
| 2009 Audi A4 | 2007 Audi S8 | |
| Make | Audi | Audi |
| Model | A4 | S8 |
| Year Released | 2009 | 2007 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 5204 cc |
| Engine Cylinders | 6 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 168 HP | 450 HP |
| Engine RPM | 6000 RPM | 7000 RPM |
| Torque | 230 Nm | 541 Nm |
| Torque RPM | 3200 RPM | 3500 RPM |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | Front | AWD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4580 mm | 5070 mm |
| Vehicle Width | 1780 mm | 1900 mm |
| Vehicle Height | 1400 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2950 mm |
| Fuel Consumption Overall | 9.8 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
