2004 Audi A4 vs. 1991 Audi S2
To start off, 2004 Audi A4 is newer by 13 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 2,226 cc (5 cylinders), 1991 Audi S2 is equipped with a bigger engine. In terms of performance, 1991 Audi S2 (216 HP @ 5900 RPM) has 79 more horse power than 2004 Audi A4. (137 HP @ 4000 RPM) In normal driving conditions, 1991 Audi S2 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 62 kg more than 1991 Audi S2.
Because 1991 Audi S2 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Audi A4. 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, 2004 Audi A4 (310 Nm @ 1740 RPM) has 1 more torque (in Nm) than 1991 Audi S2. (309 Nm @ 1950 RPM). This means 2004 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi S2.
Compare all specifications:
| 2004 Audi A4 | 1991 Audi S2 | |
| Make | Audi | Audi |
| Model | A4 | S2 |
| Year Released | 2004 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 2226 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 137 HP | 216 HP |
| Engine RPM | 4000 RPM | 5900 RPM |
| Torque | 310 Nm | 309 Nm |
| Torque RPM | 1740 RPM | 1950 RPM |
| Engine Bore Size | 81 mm | 81.1 mm |
| Engine Stroke Size | 95.5 mm | 86.4 mm |
| Engine Compression Ratio | 18.0:1 | 9.3:1 |
| Acceleration 0-100mph | 10.2 seconds | 6.1 seconds |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1482 kg | 1420 kg |
| Vehicle Length | 4590 mm | 4410 mm |
| Vehicle Width | 1780 mm | 1720 mm |
| Vehicle Height | 1430 mm | 1380 mm |
| Wheelbase Size | 2580 mm | 2560 mm |
| Fuel Consumption | 4.7 L/100km | 9.3 L/100km |
| Fuel Consumption City | 7.7 L/100km | 14.3 L/100km |
| Fuel Consumption Overall | 5.8 L/100km | 8.3 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
