2004 BMW Z4 vs. 2005 Mazda MX-5 Miata
To start off, 2005 Mazda MX-5 Miata is newer by 1 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 2,494 cc (6 cylinders), 2004 BMW Z4 is equipped with a bigger engine. In terms of performance, 2004 BMW Z4 (185 HP @ 6000 RPM) has 32 more horse power than 2005 Mazda MX-5 Miata. (153 HP @ 6700 RPM). In normal driving conditions, 2004 BMW Z4 should accelerate faster than 2005 Mazda MX-5 Miata. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW Z4 weights approximately 241 kg more than 2005 Mazda MX-5 Miata. 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, 2004 BMW Z4 (245 Nm @ 3500 RPM) has 56 more torque (in Nm) than 2005 Mazda MX-5 Miata. (189 Nm @ 5000 RPM). This means 2004 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Mazda MX-5 Miata.
Compare all specifications:
| 2004 BMW Z4 | 2005 Mazda MX-5 Miata | |
| Make | BMW | Mazda |
| Model | Z4 | MX-5 Miata |
| Year Released | 2004 | 2005 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 185 HP | 153 HP |
| Engine RPM | 6000 RPM | 6700 RPM |
| Torque | 245 Nm | 189 Nm |
| Torque RPM | 3500 RPM | 5000 RPM |
| Engine Bore Size | 84 mm | 87.5 mm |
| Engine Stroke Size | 75 mm | 83.1 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1296 kg | 1055 kg |
| Vehicle Length | 4100 mm | 3990 mm |
| Vehicle Width | 1790 mm | 1730 mm |
| Vehicle Height | 1300 mm | 1250 mm |
| Wheelbase Size | 2500 mm | 2340 mm |
| Fuel Tank Capacity | 55 L | 55 L |
