2004 BMW Z4 vs. 2007 Mazda RX-8
To start off, 2007 Mazda RX-8 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 BMW Z4. In addition, the cost of maintenance, including insurance, on 2004 BMW Z4 would be higher. At 2,171 cc (6 cylinders), 2004 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 Mazda RX-8 (228 HP @ 8200 RPM) has 60 more horse power than 2004 BMW Z4. (168 HP @ 6250 RPM) In normal driving conditions, 2007 Mazda RX-8 should accelerate faster than 2004 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mazda RX-8 weights approximately 100 kg more than 2004 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 Mazda RX-8 (211 Nm @ 5500 RPM) has 1 more torque (in Nm) than 2004 BMW Z4. (210 Nm @ 3500 RPM). This means 2007 Mazda RX-8 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW Z4.
Compare all specifications:
| 2004 BMW Z4 | 2007 Mazda RX-8 | |
| Make | BMW | Mazda |
| Model | Z4 | RX-8 |
| Year Released | 2004 | 2007 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 1307 cc |
| Engine Type | in-line | dual-disk rotary |
| Horse Power | 168 HP | 228 HP |
| Engine RPM | 6250 RPM | 8200 RPM |
| Torque | 210 Nm | 211 Nm |
| Torque RPM | 3500 RPM | 5500 RPM |
| Engine Compression Ratio | 10.8:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 220 km/hour | 235 km/hour |
| Acceleration 0-100mph | 7.7 seconds | 6.4 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1325 kg | 1425 kg |
| Vehicle Length | 4100 mm | 4440 mm |
| Vehicle Width | 1790 mm | 1780 mm |
| Vehicle Height | 1310 mm | 1350 mm |
| Wheelbase Size | 2500 mm | 2710 mm |
| Fuel Consumption Overall | 8.9 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 55 L | 61 L |
