2002 Audi S3 vs. 2007 BMW 523
To start off, 2007 BMW 523 is newer by 5 year(s). Which means there will be less support and parts availability for 2002 Audi S3. In addition, the cost of maintenance, including insurance, on 2002 Audi S3 would be higher. At 2,497 cc (6 cylinders), 2007 BMW 523 is equipped with a bigger engine. In terms of performance, 2002 Audi S3 (222 HP @ 5900 RPM) has 47 more horse power than 2007 BMW 523. (175 HP @ 5800 RPM). In normal driving conditions, 2002 Audi S3 should accelerate faster than 2007 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 523 weights approximately 142 kg more than 2002 Audi S3.
Because 2002 Audi S3 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW 523. In wet, icy, snow, or gravel driving conditions, 2002 Audi S3 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, 2002 Audi S3 (280 Nm @ 2200 RPM) has 50 more torque (in Nm) than 2007 BMW 523. (230 Nm @ 3500 RPM). This means 2002 Audi S3 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 523.
Compare all specifications:
| 2002 Audi S3 | 2007 BMW 523 | |
| Make | Audi | BMW |
| Model | S3 | 523 |
| Year Released | 2002 | 2007 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1779 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 222 HP | 175 HP |
| Engine RPM | 5900 RPM | 5800 RPM |
| Torque | 280 Nm | 230 Nm |
| Torque RPM | 2200 RPM | 3500 RPM |
| Engine Bore Size | 81 mm | 78.8 mm |
| Engine Stroke Size | 86.4 mm | 82 mm |
| Engine Compression Ratio | 9.0:1 | 11.0:1 |
| Top Speed | 243 km/hour | 235 km/hour |
| Acceleration 0-100mph | 6.6 seconds | 8.8 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1423 kg | 1565 kg |
| Vehicle Length | 4170 mm | 4850 mm |
| Vehicle Width | 1770 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2530 mm | 2890 mm |
| Fuel Tank Capacity | 62 L | 70 L |
