2007 Audi A4 vs. 2009 BMW 523
To start off, 2009 BMW 523 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A4. In addition, the cost of maintenance, including insurance, on 2007 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 46 more horse power than 2007 Audi A4. (129 HP @ 5700 RPM) In normal driving conditions, 2009 BMW 523 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 523 weights approximately 135 kg more than 2007 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2007 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 523 (230 Nm @ 3500 RPM) has 35 more torque (in Nm) than 2007 Audi A4. (195 Nm @ 3300 RPM). This means 2009 BMW 523 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4. 2007 Audi A4 has automatic transmission and 2009 BMW 523 has manual transmission. 2009 BMW 523 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Audi A4 | 2009 BMW 523 | |
| Make | Audi | BMW |
| Model | A4 | 523 |
| Year Released | 2007 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 129 HP | 175 HP |
| Engine RPM | 5700 RPM | 5800 RPM |
| Torque | 195 Nm | 230 Nm |
| Torque RPM | 3300 RPM | 3500 RPM |
| Engine Compression Ratio | 10.3:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Acceleration 0-100mph | 9.9 seconds | 8.5 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1390 kg | 1525 kg |
| Vehicle Width | 1430 mm | 1470 mm |
| Vehicle Height | 1780 mm | 1850 mm |
| Wheelbase Size | 2650 mm | 2890 mm |
| Fuel Consumption Overall | 8 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
