1991 Audi S2 vs. 2004 Audi A4
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 2,967 cc (6 cylinders), 2004 Audi A4 is equipped with a bigger engine. In terms of performance, 1991 Audi S2 (216 HP @ 5900 RPM) has 15 more horse power than 2004 Audi A4. (201 HP @ 3500 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 285 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, 2004 Audi A4 (450 Nm @ 1400 RPM) has 141 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. 2004 Audi A4 has automatic transmission and 1991 Audi S2 has manual transmission. 1991 Audi S2 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Audi S2 | 2004 Audi A4 | |
| Make | Audi | Audi |
| Model | S2 | A4 |
| Year Released | 1991 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 2226 cc | 2967 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 216 HP | 201 HP |
| Engine RPM | 5900 RPM | 3500 RPM |
| Torque | 309 Nm | 450 Nm |
| Torque RPM | 1950 RPM | 1400 RPM |
| Engine Bore Size | 81.1 mm | 83 mm |
| Engine Stroke Size | 86.4 mm | 91.4 mm |
| Engine Compression Ratio | 9.3:1 | 17.0:1 |
| Acceleration 0-100mph | 6.1 seconds | 8.2 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1420 kg | 1705 kg |
| Vehicle Length | 4410 mm | 4590 mm |
| Vehicle Width | 1720 mm | 1780 mm |
| Vehicle Height | 1380 mm | 1430 mm |
| Wheelbase Size | 2560 mm | 2470 mm |
| Fuel Consumption Highway | 9.3 L/100km | 6.3 L/100km |
| Fuel Consumption City | 14.3 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 8.3 L/100km | 8.3 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
