2003 Audi A4 vs. 2009 BMW 525
To start off, 2009 BMW 525 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Audi A4. In addition, the cost of maintenance, including insurance, on 2003 Audi A4 would be higher. At 2,497 cc (6 cylinders), 2009 BMW 525 is equipped with a bigger engine. In terms of performance, 2009 BMW 525 (175 HP @ 4000 RPM) has 62 more horse power than 2003 Audi A4. (113 HP @ 5800 RPM) In normal driving conditions, 2009 BMW 525 should accelerate faster than 2003 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 525 weights approximately 455 kg more than 2003 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 BMW 525 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 525. However, in wet, icy, snow, or gravel driving conditions, 2003 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, 2009 BMW 525 (400 Nm @ 2000 RPM) has 252 more torque (in Nm) than 2003 Audi A4. (148 Nm @ 3800 RPM). This means 2009 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A4. 2009 BMW 525 has automatic transmission and 2003 Audi A4 has manual transmission. 2003 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 BMW 525 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Audi A4 | 2009 BMW 525 | |
| Make | Audi | BMW |
| Model | A4 | 525 |
| Year Released | 2003 | 2009 |
| Body Type | Sedan | Station Wagon |
| 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 | 4000 RPM |
| Torque | 148 Nm | 400 Nm |
| Torque RPM | 3800 RPM | 2000 RPM |
| Engine Bore Size | 81.1 mm | 84.1 mm |
| Engine Stroke Size | 77.4 mm | 75.1 mm |
| Engine Compression Ratio | 10.5:1 | 17.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1295 kg | 1750 kg |
| Vehicle Length | 4590 mm | 4850 mm |
| Vehicle Width | 1770 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1500 mm |
| Wheelbase Size | 2660 mm | 2840 mm |
| Fuel Tank Capacity | 70 L | 70 L |
