2006 BMW Z4 vs. 2005 Mazda MX-5 Miata
To start off, 2006 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Mazda MX-5 Miata. In addition, the cost of maintenance, including insurance, on 2005 Mazda MX-5 Miata would be higher. At 2,492 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (189 HP @ 6000 RPM) has 49 more horse power than 2005 Mazda MX-5 Miata. (140 HP @ 7000 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2005 Mazda MX-5 Miata. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 195 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, 2006 BMW Z4 (245 Nm @ 3500 RPM) has 85 more torque (in Nm) than 2005 Mazda MX-5 Miata. (160 Nm @ 5000 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Mazda MX-5 Miata.
Compare all specifications:
| 2006 BMW Z4 | 2005 Mazda MX-5 Miata | |
| Make | BMW | Mazda |
| Model | Z4 | MX-5 Miata |
| Year Released | 2006 | 2005 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 1839 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 140 HP |
| Engine RPM | 6000 RPM | 7000 RPM |
| Torque | 245 Nm | 160 Nm |
| Torque RPM | 3500 RPM | 5000 RPM |
| Engine Bore Size | 84 mm | 83 mm |
| Engine Stroke Size | 75 mm | 85 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 235 km/hour | 205 km/hour |
| Acceleration 0-100mph | 7 seconds | 8.5 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1335 kg | 1140 kg |
| Vehicle Length | 4100 mm | 3980 mm |
| Vehicle Width | 1790 mm | 1690 mm |
| Vehicle Height | 1310 mm | 1230 mm |
| Wheelbase Size | 2500 mm | 2270 mm |
| Fuel Consumption Overall | 9 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 55 L | 50 L |
