2001 Audi RS4 vs. 2009 Audi A8
To start off, 2009 Audi A8 is newer by 8 year(s). Which means there will be less support and parts availability for 2001 Audi RS4. In addition, the cost of maintenance, including insurance, on 2001 Audi RS4 would be higher. At 4,172 cc, 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2001 Audi RS4 (377 HP @ 6300 RPM) has 48 more horse power than 2009 Audi A8. (329 HP @ 6500 RPM). In normal driving conditions, 2001 Audi RS4 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 270 kg more than 2001 Audi RS4.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2001 Audi RS4 (449 Nm @ 2500 RPM) has 18 more torque (in Nm) than 2009 Audi A8. (431 Nm @ 3500 RPM). This means 2001 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8. 2009 Audi A8 has automatic transmission and 2001 Audi RS4 has manual transmission. 2001 Audi RS4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2001 Audi RS4 | 2009 Audi A8 | |
| Make | Audi | Audi |
| Model | RS4 | A8 |
| Year Released | 2001 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 4172 cc |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 377 HP | 329 HP |
| Engine RPM | 6300 RPM | 6500 RPM |
| Torque | 449 Nm | 431 Nm |
| Torque RPM | 2500 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1585 kg | 1855 kg |
| Vehicle Length | 4480 mm | 5060 mm |
| Vehicle Width | 1740 mm | 1900 mm |
| Vehicle Height | 1450 mm | 1450 mm |
| Wheelbase Size | 2610 mm | 2950 mm |
| Fuel Tank Capacity | 55 L | 90 L |
