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| 2005 BMW Z4 Roadster | 2004 BMW Z4 | |
| Price Range | ||
| Engine(s) | 2.5l I6, 3.0l I6 | 2.5l I6, 3.0l I6 |
| Transmission(s) | A5, M5, M6 | A5, M5, M6 |
| Driven Wheels | RWD | RWD |
| Length / Width / Height | 161.1 / 70.1 / 51.1 | 161.1 / 70.1 / 51.1 |
| Curb Weight (lbs.) | 2932 - 3042 | 2932 - 3042 |