View all official dimensions of the new BMW i8 Roadster 2025 and of previous generations of this model. Find technical data such as length, width, height, wheelbase, headroom, legroom, trunk volume, tire size and much more for each version.
| Body type | Convertible |
| Length | 4,689 mm |
| Width without mirrors | 1,942 mm |
| Height | 1,289 mm |
| Wheelbase | 2,800 mm |
| Front track width | 1,644 mm |
| Rear track width | 1,721 mm |
