1991 Audi 100 vs. 2006 Audi A4
To start off, 2006 Audi A4 is newer by 15 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 2,967 cc (6 cylinders), 2006 Audi A4 is equipped with a bigger engine. In terms of performance, 2006 Audi A4 (201 HP @ 4000 RPM) has 30 more horse power than 1991 Audi 100. (171 HP @ 5500 RPM) In normal driving conditions, 2006 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 225 kg more than 2006 Audi A4.
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, 2006 Audi A4 (450 Nm @ 1400 RPM) has 199 more torque (in Nm) than 1991 Audi 100. (251 Nm @ 3000 RPM). This means 2006 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 | 2006 Audi A4 | |
| Make | Audi | Audi |
| Model | 100 | A4 |
| Year Released | 1991 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2771 cc | 2967 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 171 HP | 201 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 251 Nm | 450 Nm |
| Torque RPM | 3000 RPM | 1400 RPM |
| Engine Bore Size | 82.5 mm | 83 mm |
| Engine Stroke Size | 86.4 mm | 91.4 mm |
| Top Speed | 218 km/hour | 235 km/hour |
| 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 | 1275 kg |
| Vehicle Length | 4800 mm | 4590 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 2690 mm | 2650 mm |
| Fuel Consumption Overall | 8.8 L/100km | 7.7 L/100km |
| Fuel Tank Capacity | 80 L | 63 L |
