1991 Audi 100 vs. 2002 Audi A4
To start off, 2002 Audi A4 is newer by 11 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 2,391 cc (6 cylinders), 2002 Audi A4 is equipped with a bigger engine. In terms of performance, 2002 Audi A4 (168 HP @ 4000 RPM) has 37 more horse power than 1991 Audi 100. (131 HP @ 5500 RPM) In normal driving conditions, 2002 Audi A4 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2002 Audi A4 weights approximately 150 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 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, 2002 Audi A4 (310 Nm @ 1400 RPM) has 124 more torque (in Nm) than 1991 Audi 100. (186 Nm @ 4000 RPM). This means 2002 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 1991 Audi 100 | 2002 Audi A4 | |
| Make | Audi | Audi |
| Model | 100 | A4 |
| Year Released | 1991 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 2391 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 131 HP | 168 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 186 Nm | 310 Nm |
| Torque RPM | 4000 RPM | 1400 RPM |
| Engine Bore Size | 82.5 mm | 78.3 mm |
| Engine Stroke Size | 86.4 mm | 86.4 mm |
| Engine Compression Ratio | 10.0:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1410 kg | 1560 kg |
| Vehicle Length | 4800 mm | 4550 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1430 mm |
