2005 Audi A4 vs. 2008 BMW 523
To start off, 2008 BMW 523 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 2,497 cc (6 cylinders), 2008 BMW 523 is equipped with a bigger engine. In terms of performance, 2008 BMW 523 (175 HP @ 5800 RPM) has 4 more horse power than 2005 Audi A4. (171 HP @ 6200 RPM) In normal driving conditions, 2008 BMW 523 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 170 kg more than 2008 BMW 523.
Because 2005 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW 523. In wet, icy, snow, or gravel driving conditions, 2005 Audi A4 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, 2008 BMW 523 (230 Nm) has 5 more torque (in Nm) than 2005 Audi A4. (225 Nm). This means 2008 BMW 523 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2008 BMW 523 | |
| Make | Audi | BMW |
| Model | A4 | 523 |
| Year Released | 2005 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 1786 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 171 HP | 175 HP |
| Engine RPM | 6200 RPM | 5800 RPM |
| Torque | 225 Nm | 230 Nm |
| Engine Bore Size | 81 mm | 82.1 mm |
| Engine Stroke Size | 86 mm | 78.8 mm |
| Engine Compression Ratio | 9.3:1 | 11.0:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1660 kg | 1490 kg |
| Vehicle Length | 4550 mm | 4870 mm |
| Vehicle Height | 1430 mm | 1420 mm |
| Wheelbase Size | 2770 mm | 2890 mm |
| Fuel Consumption Overall | 10.2 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
