2009 Audi A8 vs. 1991 Audi S2
To start off, 2009 Audi A8 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Audi S2. In addition, the cost of maintenance, including insurance, on 1991 Audi S2 would be higher. At 2,975 cc (6 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (217 HP @ 6300 RPM) has 1 more horse power than 1991 Audi S2. (216 HP @ 5900 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 1991 Audi S2. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 250 kg more than 1991 Audi S2. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Audi S2 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A8. In wet, icy, snow, or gravel driving conditions, 1991 Audi S2 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 S2 (309 Nm @ 1950 RPM) has 9 more torque (in Nm) than 2009 Audi A8. (300 Nm @ 8200 RPM). This means 1991 Audi S2 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8.
Compare all specifications:
| 2009 Audi A8 | 1991 Audi S2 | |
| Make | Audi | Audi |
| Model | A8 | S2 |
| Year Released | 2009 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2975 cc | 2226 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Horse Power | 217 HP | 216 HP |
| Engine RPM | 6300 RPM | 5900 RPM |
| Torque | 300 Nm | 309 Nm |
| Torque RPM | 8200 RPM | 1950 RPM |
| Engine Bore Size | 82.5 mm | 81.1 mm |
| Engine Stroke Size | 92.8 mm | 86.4 mm |
| Engine Compression Ratio | 11.0:1 | 9.3:1 |
| Acceleration 0-100mph | 8.3 seconds | 6.1 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1670 kg | 1420 kg |
| Vehicle Length | 5190 mm | 4410 mm |
| Vehicle Width | 1900 mm | 1720 mm |
| Vehicle Height | 1460 mm | 1380 mm |
| Wheelbase Size | 3080 mm | 2560 mm |
| Fuel Consumption Overall | 9.6 L/100km | 8.3 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
