2004 Audi A4 vs. 1991 Audi 100
To start off, 2004 Audi A4 is newer by 13 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 2,224 cc (5 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 1991 Audi 100 (165 HP @ 5500 RPM) has 5 more horse power than 2004 Audi A4. (160 HP @ 5700 RPM) In normal driving conditions, 1991 Audi 100 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 80 kg more than 1991 Audi 100.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than 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, 1991 Audi 100 (240 Nm @ 3000 RPM) has 15 more torque (in Nm) than 2004 Audi A4. (225 Nm @ 1950 RPM). This means 1991 Audi 100 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4.
Compare all specifications:
| 2004 Audi A4 | 1991 Audi 100 | |
| Make | Audi | Audi |
| Model | A4 | 100 |
| Year Released | 2004 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 2224 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 160 HP | 165 HP |
| Engine RPM | 5700 RPM | 5500 RPM |
| Torque | 225 Nm | 240 Nm |
| Torque RPM | 1950 RPM | 3000 RPM |
| Engine Bore Size | 81.1 mm | 81 mm |
| Engine Stroke Size | 86.4 mm | 86.4 mm |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1490 kg | 1410 kg |
| Vehicle Length | 4590 mm | 4800 mm |
| Vehicle Width | 1780 mm | 1820 mm |
| Vehicle Height | 1430 mm | 1430 mm |
| Wheelbase Size | 2470 mm | 2700 mm |
