1991 Audi 100 vs. 2004 Audi A4
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 2,771 cc (6 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 2004 Audi A4 (187 HP @ 5700 RPM) has 16 more horse power than 1991 Audi 100. (171 HP @ 5500 RPM) In normal driving conditions, 2004 Audi A4 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi 100 weights approximately 50 kg more than 2004 Audi A4.
Because 1991 Audi 100 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Audi A4. In wet, icy, snow, or gravel driving conditions, 1991 Audi 100 will offer significantly more control. 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 (251 Nm @ 3000 RPM) has 16 more torque (in Nm) than 2004 Audi A4. (235 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:
| 1991 Audi 100 | 2004 Audi A4 | |
| Make | Audi | Audi |
| Model | 100 | A4 |
| Year Released | 1991 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 2771 cc | 1781 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 171 HP | 187 HP |
| Engine RPM | 5500 RPM | 5700 RPM |
| Torque | 251 Nm | 235 Nm |
| Torque RPM | 3000 RPM | 1950 RPM |
| Engine Bore Size | 82.5 mm | 81 mm |
| Engine Stroke Size | 86.4 mm | 86.4 mm |
| Top Speed | 218 km/hour | 236 km/hour |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1500 kg | 1450 kg |
| Vehicle Length | 4800 mm | 4590 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 2690 mm | 2580 mm |
| Fuel Consumption Highway | 10 L/100km | 6.7 L/100km |
| Fuel Consumption City | 14 L/100km | 11.6 L/100km |
| Fuel Consumption Overall | 8.8 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 80 L | 70 L |
