2005 Audi A8 vs. 1991 Audi 100
To start off, 2005 Audi A8 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 5,998 cc, 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (450 HP @ 6300 RPM) has 337 more horse power than 1991 Audi 100. (113 HP @ 4000 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 672 kg more than 1991 Audi 100. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A8 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, 2005 Audi A8 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 A8 (560 Nm) has 295 more torque (in Nm) than 1991 Audi 100. (265 Nm). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 2005 Audi A8 | 1991 Audi 100 | |
| Make | Audi | Audi |
| Model | A8 | 100 |
| Year Released | 2005 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 2461 cc |
| Horse Power | 450 HP | 113 HP |
| Engine RPM | 6300 RPM | 4000 RPM |
| Torque | 560 Nm | 265 Nm |
| Engine Bore Size | 84.1 mm | 81 mm |
| Engine Stroke Size | 90 mm | 95.5 mm |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2145 kg | 1473 kg |
| Vehicle Length | 5200 mm | 4810 mm |
| Vehicle Width | 1900 mm | 1790 mm |
| Vehicle Height | 1460 mm | 1450 mm |
| Wheelbase Size | 3080 mm | 2700 mm |
| Fuel Tank Capacity | 90 L | 80 L |
