2005 Audi A6 vs. 1991 Audi 100
To start off, 2005 Audi A6 is newer by 14 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 2,496 cc (6 cylinders), 2005 Audi A6 is equipped with a bigger engine. In terms of performance, 1991 Audi 100 (226 HP @ 5900 RPM) has 39 more horse power than 2005 Audi A6. (187 HP @ 6300 RPM) In normal driving conditions, 1991 Audi 100 should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 96 kg more than 1991 Audi 100.
Because 1991 Audi 100 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Audi A6. 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 (350 Nm @ 1950 RPM) has 120 more torque (in Nm) than 2005 Audi A6. (230 Nm @ 3000 RPM). This means 1991 Audi 100 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6.
Compare all specifications:
| 2005 Audi A6 | 1991 Audi 100 | |
| Make | Audi | Audi |
| Model | A6 | 100 |
| Year Released | 2005 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 2226 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Horse Power | 187 HP | 226 HP |
| Engine RPM | 6300 RPM | 5900 RPM |
| Torque | 230 Nm | 350 Nm |
| Torque RPM | 3000 RPM | 1950 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 77.4 mm | 86.4 mm |
| Engine Compression Ratio | 11.0:1 | 9.3:1 |
| Top Speed | 224 km/hour | 244 km/hour |
| Acceleration 0-100mph | 9.3 seconds | 6.8 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1710 kg | 1614 kg |
| Vehicle Length | 4800 mm | 4800 mm |
| Vehicle Width | 1860 mm | 1810 mm |
| Vehicle Height | 1460 mm | 1450 mm |
| Wheelbase Size | 2660 mm | 2700 mm |
| Fuel Consumption | 7.1 L/100km | 9.5 L/100km |
| Fuel Consumption City | 14.3 L/100km | 14.2 L/100km |
| Fuel Consumption Overall | 9.7 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
