2009 BMW Z4 vs. 2004 Mazda 6
To start off, 2009 BMW Z4 is newer by 5 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 3,246 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (338 HP @ 7900 RPM) has 82 more horse power than 2004 Mazda 6. (256 HP @ 6000 RPM). In normal driving conditions, 2009 BMW Z4 should accelerate faster than 2004 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW Z4 weights approximately 455 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 2004 Mazda 6 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2004 Mazda 6 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, 2004 Mazda 6 (380 Nm @ 3000 RPM) has 15 more torque (in Nm) than 2009 BMW Z4. (365 Nm @ 4900 RPM). This means 2004 Mazda 6 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW Z4.
Compare all specifications:
| 2009 BMW Z4 | 2004 Mazda 6 | |
| Make | BMW | Mazda |
| Model | Z4 | 6 |
| Year Released | 2009 | 2004 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 2261 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 256 HP |
| Engine RPM | 7900 RPM | 6000 RPM |
| Torque | 365 Nm | 380 Nm |
| Torque RPM | 4900 RPM | 3000 RPM |
| Engine Compression Ratio | 11.5:1 | 9.5:1 |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 5 seconds | 6.9 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1485 kg | 1030 kg |
| Vehicle Length | 4120 mm | 4750 mm |
| Vehicle Width | 1310 mm | 1790 mm |
| Vehicle Height | 1790 mm | 1450 mm |
| Wheelbase Size | 2500 mm | 2680 mm |
