2002 Audi A4 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 A4. In addition, the cost of maintenance, including insurance, on 2002 Audi A4 would be higher. At 2,497 cc (6 cylinders), 2007 BMW 523 is equipped with a bigger engine. In terms of performance, 2007 BMW 523 (175 HP @ 5800 RPM) has 62 more horse power than 2002 Audi A4. (113 HP @ 5800 RPM) In normal driving conditions, 2007 BMW 523 should accelerate faster than 2002 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 523 weights approximately 205 kg more than 2002 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 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 2007 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, 2007 BMW 523 (230 Nm @ 3500 RPM) has 75 more torque (in Nm) than 2002 Audi A4. (155 Nm @ 3800 RPM). This means 2007 BMW 523 will have an easier job in driving up hills or pulling heavy equipment than 2002 Audi A4.
Compare all specifications:
| 2002 Audi A4 | 2007 BMW 523 | |
| Make | Audi | BMW |
| Model | A4 | 523 |
| Year Released | 2002 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1595 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 113 HP | 175 HP |
| Engine RPM | 5800 RPM | 5800 RPM |
| Torque | 155 Nm | 230 Nm |
| Torque RPM | 3800 RPM | 3500 RPM |
| Engine Bore Size | 81 mm | 82 mm |
| Engine Stroke Size | 77.4 mm | 78.8 mm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1295 kg | 1500 kg |
| Vehicle Length | 4550 mm | 4850 mm |
| Vehicle Width | 1770 mm | 1470 mm |
| Vehicle Height | 1430 mm | 1850 mm |
| Wheelbase Size | 2660 mm | 2890 mm |
| Fuel Tank Capacity | 70 L | 70 L |
