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 2,771 cc (6 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 1991 Audi 100 (171 HP @ 5500 RPM) has 1 more horse power than 2006 Audi A4. (170 HP @ 5900 RPM). In normal driving conditions, 1991 Audi 100 should accelerate faster than 2006 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 200 kg more than 1991 Audi 100.
Because 2006 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Audi 100. In wet, icy, snow, or gravel driving conditions, 2006 Audi A4 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 (250 Nm @ 3000 RPM) has 24 more torque (in Nm) than 2006 Audi A4. (226 Nm @ 1950 RPM). This means 1991 Audi 100 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
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 | 1786 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 171 HP | 170 HP |
| Engine RPM | 5500 RPM | 5900 RPM |
| Torque | 250 Nm | 226 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 | 212 km/hour | 226 km/hour |
| Acceleration 0-100mph | 8.3 seconds | 9.4 seconds |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1450 kg | 1650 kg |
| Vehicle Length | 4800 mm | 4580 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1400 mm |
| Wheelbase Size | 2690 mm | 2660 mm |
| Fuel Tank Capacity | 80 L | 70 L |
