2004 Audi A6 vs. 2008 BMW 523
To start off, 2008 BMW 523 is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Audi A6. In addition, the cost of maintenance, including insurance, on 2004 Audi A6 would be higher. At 2,983 cc (6 cylinders), 2004 Audi A6 is equipped with a bigger engine. In terms of performance, 2004 Audi A6 (220 HP @ 6500 RPM) has 45 more horse power than 2008 BMW 523. (175 HP @ 5800 RPM). In normal driving conditions, 2004 Audi A6 should accelerate faster than 2008 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 270 kg more than 2008 BMW 523. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 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 2008 BMW 523. However, in wet, icy, snow, or gravel driving conditions, 2004 Audi A6, 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, 2004 Audi A6 (300 Nm) has 70 more torque (in Nm) than 2008 BMW 523. (230 Nm). This means 2004 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 523.
Compare all specifications:
| 2004 Audi A6 | 2008 BMW 523 | |
| Make | Audi | BMW |
| Model | A6 | 523 |
| Year Released | 2004 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 2983 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 220 HP | 175 HP |
| Engine RPM | 6500 RPM | 5800 RPM |
| Torque | 300 Nm | 230 Nm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1760 kg | 1490 kg |
| Vehicle Length | 4880 mm | 4870 mm |
| Vehicle Height | 1460 mm | 1420 mm |
| Wheelbase Size | 2770 mm | 2890 mm |
| Fuel Consumption Overall | 11.2 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
