1991 Audi 100 vs. 2009 Audi S8
To start off, 2009 Audi S8 is newer by 18 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 5,204 cc (10 cylinders), 2009 Audi S8 is equipped with a bigger engine. In terms of performance, 2009 Audi S8 (450 HP @ 7000 RPM) has 277 more horse power than 1991 Audi 100. (173 HP @ 5500 RPM) In normal driving conditions, 2009 Audi S8 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 2009 Audi S8.
Because 2009 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 1991 Audi 100. In wet, icy, snow, or gravel driving conditions, 2009 Audi S8 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, 2009 Audi S8 (540 Nm @ 3500 RPM) has 291 more torque (in Nm) than 1991 Audi 100. (249 Nm @ 3000 RPM). This means 2009 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 1991 Audi 100 | 2009 Audi S8 | |
| Make | Audi | Audi |
| Model | 100 | S8 |
| Year Released | 1991 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2771 cc | 5204 cc |
| Engine Cylinders | 6 cylinders | 10 cylinders |
| Engine Type | V | V |
| Horse Power | 173 HP | 450 HP |
| Engine RPM | 5500 RPM | 7000 RPM |
| Torque | 249 Nm | 540 Nm |
| Torque RPM | 3000 RPM | 3500 RPM |
| Engine Compression Ratio | 10.0:1 | 12.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Acceleration 0-100mph | 10 seconds | 5.1 seconds |
| Drive Type | Front | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1400 kg | 1175 kg |
| Vehicle Length | 4800 mm | 5070 mm |
| Vehicle Width | 1790 mm | 1900 mm |
| Vehicle Height | 1440 mm | 1430 mm |
| Wheelbase Size | 2700 mm | 2950 mm |
