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 2,461 cc (5 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 2002 Audi A4 (168 HP @ 5700 RPM) has 55 more horse power than 1991 Audi 100. (113 HP @ 4000 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 55 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, 1991 Audi 100 (264 Nm @ 2250 RPM) has 39 more torque (in Nm) than 2002 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 2002 Audi A4.
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 | 2461 cc | 1779 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 113 HP | 168 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 264 Nm | 225 Nm |
| Torque RPM | 2250 RPM | 1950 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 95.5 mm | 86.4 mm |
| Engine Compression Ratio | 21.0:1 | 9.3:1 |
| Top Speed | 193 km/hour | 228 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1320 kg | 1375 kg |
| Vehicle Length | 4800 mm | 4550 mm |
| Vehicle Width | 1790 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 2700 mm | 2660 mm |
| Fuel Consumption | 6.2 L/100km | 6.7 L/100km |
| Fuel Consumption City | 7.6 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 4.8 L/100km | 8.6 L/100km |
| Fuel Tank Capacity | 80 L | 70 L |
