2005 Audi A6 vs. 1981 Audi 100
To start off, 2005 Audi A6 is newer by 24 year(s). Which means there will be less support and parts availability for 1981 Audi 100. In addition, the cost of maintenance, including insurance, on 1981 Audi 100 would be higher. At 2,393 cc (6 cylinders), 2005 Audi A6 is equipped with a bigger engine. In terms of performance, 2005 Audi A6 (178 HP @ 4000 RPM) has 93 more horse power than 1981 Audi 100. (85 HP @ 5600 RPM). In normal driving conditions, 2005 Audi A6 should accelerate faster than 1981 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 620 kg more than 1981 Audi 100. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 1981 Audi 100. In wet, icy, snow, or gravel driving conditions, 2005 Audi A6 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, 2005 Audi A6 (370 Nm @ 1500 RPM) has 246 more torque (in Nm) than 1981 Audi 100. (124 Nm @ 3200 RPM). This means 2005 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1981 Audi 100.
Compare all specifications:
| 2005 Audi A6 | 1981 Audi 100 | |
| Make | Audi | Audi |
| Model | A6 | 100 |
| Year Released | 2005 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 1588 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 178 HP | 85 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 370 Nm | 124 Nm |
| Torque RPM | 1500 RPM | 3200 RPM |
| Engine Bore Size | 78.3 mm | 79.5 mm |
| Engine Stroke Size | 86.4 mm | 80 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1730 kg | 1110 kg |
| Vehicle Length | 4800 mm | 4600 mm |
| Vehicle Width | 1820 mm | 1770 mm |
| Vehicle Height | 1460 mm | 1400 mm |
| Wheelbase Size | 2660 mm | 2680 mm |
| Fuel Tank Capacity | 70 L | 60 L |
