2009 Audi A6 vs. 1991 Audi S2
To start off, 2009 Audi A6 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 2,698 cc (6 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 1991 Audi S2 (216 HP @ 5900 RPM) has 38 more horse power than 2009 Audi A6. (178 HP @ 3300 RPM) In normal driving conditions, 1991 Audi S2 should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A6 weights approximately 278 kg more than 1991 Audi S2.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 A6 (380 Nm @ 1400 RPM) has 71 more torque (in Nm) than 1991 Audi S2. (309 Nm @ 1950 RPM). This means 2009 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi S2.
Compare all specifications:
| 2009 Audi A6 | 1991 Audi S2 | |
| Make | Audi | Audi |
| Model | A6 | S2 |
| Year Released | 2009 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2698 cc | 2226 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Horse Power | 178 HP | 216 HP |
| Engine RPM | 3300 RPM | 5900 RPM |
| Torque | 380 Nm | 309 Nm |
| Torque RPM | 1400 RPM | 1950 RPM |
| Engine Bore Size | 83 mm | 81.1 mm |
| Engine Stroke Size | 83.1 mm | 86.4 mm |
| Engine Compression Ratio | 17.0:1 | 9.3:1 |
| Acceleration 0-100mph | 9.1 seconds | 6.1 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1698 kg | 1420 kg |
| Vehicle Length | 4940 mm | 4410 mm |
| Vehicle Width | 1860 mm | 1720 mm |
| Vehicle Height | 1470 mm | 1380 mm |
| Wheelbase Size | 2850 mm | 2560 mm |
| Fuel Consumption Overall | 8.3 L/100km | 8.3 L/100km |
| Fuel Tank Capacity | 80 L | 70 L |
