2007 BMW 523 vs. 2004 Mazda 6
To start off, 2007 BMW 523 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Mazda 6. In addition, the cost of maintenance, including insurance, on 2004 Mazda 6 would be higher. At 2,497 cc (6 cylinders), 2007 BMW 523 is equipped with a bigger engine. In terms of performance, 2007 BMW 523 (175 HP @ 5800 RPM) has 56 more horse power than 2004 Mazda 6. (119 HP @ 5500 RPM). In normal driving conditions, 2007 BMW 523 should accelerate faster than 2004 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 523 weights approximately 70 kg more than 2004 Mazda 6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 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 2007 BMW 523. However, in wet, icy, snow, or gravel driving conditions, 2004 Mazda 6, 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, 2007 BMW 523 (230 Nm @ 3500 RPM) has 44 more torque (in Nm) than 2004 Mazda 6. (186 Nm @ 4500 RPM). This means 2007 BMW 523 will have an easier job in driving up hills or pulling heavy equipment than 2004 Mazda 6.
Compare all specifications:
| 2007 BMW 523 | 2004 Mazda 6 | |
| Make | BMW | Mazda |
| Model | 523 | 6 |
| Year Released | 2007 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 1839 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 119 HP |
| Engine RPM | 5800 RPM | 5500 RPM |
| Torque | 230 Nm | 186 Nm |
| Torque RPM | 3500 RPM | 4500 RPM |
| Engine Bore Size | 82.1 mm | 83 mm |
| Engine Stroke Size | 78.8 mm | 83.1 mm |
| Engine Compression Ratio | 11.0:1 | 8.4:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1490 kg | 1420 kg |
| Vehicle Width | 1470 mm | 1790 mm |
| Vehicle Height | 1850 mm | 1490 mm |
| Wheelbase Size | 2890 mm | 2680 mm |
| Fuel Tank Capacity | 70 L | 64 L |
