2002 Audi A4 vs. 2009 BMW 523
To start off, 2009 BMW 523 is newer by 7 year(s). Which means there will be less support and parts availability for 2002 Audi A4. In addition, the cost of maintenance, including insurance, on 2002 Audi A4 would be higher. At 2,497 cc (6 cylinders), 2009 BMW 523 is equipped with a bigger engine. In terms of performance, 2009 BMW 523 (175 HP @ 5800 RPM) has 7 more horse power than 2002 Audi A4. (168 HP @ 4000 RPM) In normal driving conditions, 2009 BMW 523 should accelerate faster than 2002 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2002 Audi A4 weights approximately 35 kg more than 2009 BMW 523.
Because 2009 BMW 523 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2009 BMW 523. However, in wet, icy, snow, or gravel driving conditions, 2002 Audi A4, being front wheel drive (FWD), will offer much better control with better grip. 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 A4 (310 Nm @ 1400 RPM) has 80 more torque (in Nm) than 2009 BMW 523. (230 Nm @ 3500 RPM). This means 2002 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 523.
Compare all specifications:
| 2002 Audi A4 | 2009 BMW 523 | |
| Make | Audi | BMW |
| Model | A4 | 523 |
| Year Released | 2002 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2391 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 168 HP | 175 HP |
| Engine RPM | 4000 RPM | 5800 RPM |
| Torque | 310 Nm | 230 Nm |
| Torque RPM | 1400 RPM | 3500 RPM |
| Engine Compression Ratio | 18.5:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 9.1 seconds | 8.5 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1560 kg | 1525 kg |
| Vehicle Width | 1780 mm | 1470 mm |
| Vehicle Height | 1430 mm | 1850 mm |
| Wheelbase Size | 2770 mm | 2890 mm |
| Fuel Consumption Overall | 7 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
