2009 Audi A8 vs. 2002 Audi A4
To start off, 2009 Audi A8 is newer by 7 year(s). Which means there will be less support and parts availability for 2002 Audi A4. In addition, the cost of maintenance, including insurance, on 2002 Audi A4 would be higher. At 4,172 cc, 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (329 HP @ 6500 RPM) has 145 more horse power than 2002 Audi A4. (184 HP @ 5700 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2002 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 425 kg more than 2002 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2002 Audi A4. In wet, icy, snow, or gravel driving conditions, 2009 Audi A8 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 A8 (431 Nm @ 3500 RPM) has 191 more torque (in Nm) than 2002 Audi A4. (240 Nm @ 1950 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2002 Audi A4.
Compare all specifications:
| 2009 Audi A8 | 2002 Audi A4 | |
| Make | Audi | Audi |
| Model | A8 | A4 |
| Year Released | 2009 | 2002 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 1781 cc |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 329 HP | 184 HP |
| Engine RPM | 6500 RPM | 5700 RPM |
| Torque | 431 Nm | 240 Nm |
| Torque RPM | 3500 RPM | 1950 RPM |
| Top Speed | 250 km/hour | 223 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 7.8 seconds |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1855 kg | 1430 kg |
| Vehicle Length | 5060 mm | 4550 mm |
| Vehicle Width | 1900 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 2950 mm | 2660 mm |
| Fuel Consumption Overall | 8.8 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
