1999 Audi A4 vs. 2008 BMW 523
To start off, 2008 BMW 523 is newer by 9 year(s). Which means there will be less support and parts availability for 1999 Audi A4. In addition, the cost of maintenance, including insurance, on 1999 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 52 more horse power than 1999 Audi A4. (123 HP @ 5800 RPM) In normal driving conditions, 2008 BMW 523 should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 523 weights approximately 100 kg more than 1999 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 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, 1999 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 @ 3500 RPM) has 62 more torque (in Nm) than 1999 Audi A4. (168 Nm @ 3500 RPM). This means 2008 BMW 523 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4.
Compare all specifications:
| 1999 Audi A4 | 2008 BMW 523 | |
| Make | Audi | BMW |
| Model | A4 | 523 |
| Year Released | 1999 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 175 HP |
| Engine RPM | 5800 RPM | 5800 RPM |
| Torque | 168 Nm | 230 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 81 mm | 82.1 mm |
| Engine Stroke Size | 86.4 mm | 78.8 mm |
| Engine Compression Ratio | 10.3:1 | 11.0:1 |
| Acceleration 0-100mph | 11.3 seconds | 8.5 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1390 kg | 1490 kg |
| Vehicle Length | 4480 mm | 4870 mm |
| Vehicle Height | 1420 mm | 1420 mm |
| Wheelbase Size | 2610 mm | 2890 mm |
| Fuel Tank Capacity | 60 L | 70 L |
