2006 BMW Z4 vs. 2004 Mazda 6
To start off, 2006 BMW Z4 is newer by 2 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 2,999 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2004 Mazda 6 (256 HP @ 6000 RPM) has 1 more horse power than 2006 BMW Z4. (255 HP @ 6600 RPM) In normal driving conditions, 2004 Mazda 6 should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 805 kg more than 2004 Mazda 6.
Because 2004 Mazda 6 is four wheel drive (4WD), it will have significant more traction and grip than 2006 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 82 more torque (in Nm) than 2006 BMW Z4. (298 Nm @ 2750 RPM). This means 2004 Mazda 6 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 2006 BMW Z4 | 2004 Mazda 6 | |
| Make | BMW | Mazda |
| Model | Z4 | 6 |
| Year Released | 2006 | 2004 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2999 cc | 2261 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 256 HP |
| Engine RPM | 6600 RPM | 6000 RPM |
| Torque | 298 Nm | 380 Nm |
| Torque RPM | 2750 RPM | 3000 RPM |
| Engine Compression Ratio | 10.7:1 | 9.5:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1835 kg | 1030 kg |
| Vehicle Length | 4100 mm | 4750 mm |
| Vehicle Width | 1790 mm | 1790 mm |
| Vehicle Height | 1270 mm | 1450 mm |
| Wheelbase Size | 2500 mm | 2680 mm |
