2007 BMW Z4 vs. 2003 Mazda 6
To start off, 2007 BMW Z4 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Mazda 6. In addition, the cost of maintenance, including insurance, on 2003 Mazda 6 would be higher. At 2,996 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (335 HP @ 7900 RPM) has 196 more horse power than 2003 Mazda 6. (139 HP @ 6000 RPM). In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2003 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2003 Mazda 6 weights approximately 40 kg more than 2007 BMW Z4.
Because 2007 BMW Z4 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 Z4. However, in wet, icy, snow, or gravel driving conditions, 2003 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 Z4 (315 Nm @ 2750 RPM) has 134 more torque (in Nm) than 2003 Mazda 6. (181 Nm @ 4500 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda 6.
Compare all specifications:
| 2007 BMW Z4 | 2003 Mazda 6 | |
| Make | BMW | Mazda |
| Model | Z4 | 6 |
| Year Released | 2007 | 2003 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 335 HP | 139 HP |
| Engine RPM | 7900 RPM | 6000 RPM |
| Torque | 315 Nm | 181 Nm |
| Torque RPM | 2750 RPM | 4500 RPM |
| Engine Compression Ratio | 11.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 6.2 seconds | 9.9 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1310 kg | 1350 kg |
| Vehicle Length | 4100 mm | 4710 mm |
| Vehicle Width | 1790 mm | 1790 mm |
| Vehicle Height | 1310 mm | 1490 mm |
| Wheelbase Size | 2500 mm | 2610 mm |
| Fuel Consumption Overall | 9.5 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 55 L | 64 L |
