2007 BMW Z4 vs. 2009 Mazda CX-7
To start off, 2009 Mazda CX-7 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW Z4. In addition, the cost of maintenance, including insurance, on 2007 BMW Z4 would be higher. At 2,497 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 Mazda CX-7 (244 HP @ 5000 RPM) has 29 more horse power than 2007 BMW Z4. (215 HP @ 6500 RPM) In normal driving conditions, 2009 Mazda CX-7 should accelerate faster than 2007 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Z4 weights approximately 182 kg more than 2009 Mazda CX-7.
Because 2009 Mazda CX-7 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2009 Mazda CX-7 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, 2009 Mazda CX-7 (350 Nm @ 2500 RPM) has 100 more torque (in Nm) than 2007 BMW Z4. (250 Nm @ 2750 RPM). This means 2009 Mazda CX-7 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4. 2009 Mazda CX-7 has automatic transmission and 2007 BMW Z4 has manual transmission. 2007 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Mazda CX-7 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW Z4 | 2009 Mazda CX-7 | |
| Make | BMW | Mazda |
| Model | Z4 | CX-7 |
| Year Released | 2007 | 2009 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2258 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 244 HP |
| Engine RPM | 6500 RPM | 5000 RPM |
| Torque | 250 Nm | 350 Nm |
| Torque RPM | 2750 RPM | 2500 RPM |
| Engine Compression Ratio | 11.0:1 | 8.4:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1362 kg | 1180 kg |
| Vehicle Length | 4100 mm | 4680 mm |
| Vehicle Width | 1310 mm | 1880 mm |
| Vehicle Height | 1790 mm | 1650 mm |
| Wheelbase Size | 2500 mm | 2760 mm |
| Fuel Consumption Overall | 8.4 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 55 L | 69 L |
