1991 Audi 100 vs. 2003 Audi RS4
To start off, 2003 Audi RS4 is newer by 12 year(s). Which means there will be less support and parts availability for 1991 Audi 100. In addition, the cost of maintenance, including insurance, on 1991 Audi 100 would be higher. At 2,771 cc (6 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 2003 Audi RS4 (377 HP @ 6300 RPM) has 206 more horse power than 1991 Audi 100. (171 HP @ 5500 RPM) In normal driving conditions, 2003 Audi RS4 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi RS4 weights approximately 85 kg more than 1991 Audi 100. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2003 Audi RS4 (449 Nm @ 2500 RPM) has 198 more torque (in Nm) than 1991 Audi 100. (251 Nm @ 3000 RPM). This means 2003 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 1991 Audi 100 | 2003 Audi RS4 | |
| Make | Audi | Audi |
| Model | 100 | RS4 |
| Year Released | 1991 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2771 cc | 2671 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 171 HP | 377 HP |
| Engine RPM | 5500 RPM | 6300 RPM |
| Torque | 251 Nm | 449 Nm |
| Torque RPM | 3000 RPM | 2500 RPM |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1500 kg | 1585 kg |
| Vehicle Length | 4800 mm | 4480 mm |
| Vehicle Width | 1780 mm | 1740 mm |
| Vehicle Height | 1450 mm | 1450 mm |
| Wheelbase Size | 2690 mm | 2610 mm |
| Fuel Tank Capacity | 80 L | 55 L |
