The most common tyre size on the Citroën C8 is 215/60R16 (overall diameter ≈ 664 mm). Exact fitment depends on generation and engine — full breakdown below.
| Engine | Tyre sizes |
|---|---|
| C8 2.0 16V - 136 PS - Benzin - 1997 Hubraum | 205/65R15 215/60R16 215/65R15 |
| C8 2.0 16V - 140 PS - Benzin - 1997 Hubraum | 215/60R16 215/65R15 |
| C8 2.0 HDi - 107 PS - Diesel - 1997 Hubraum | 215/60R16 215/65R15 |
| C8 2.0 HDi - 109 PS - Diesel - 1997 Hubraum | 215/60R16 215/65R15 |
| C8 2.0 HDi - 120 PS - Diesel - 1997 Hubraum | 215/60R16 |
| C8 2.0 HDi - 136 PS - Diesel - 1997 Hubraum | 215/60R16 |
| C8 2.0 HDi - 163 PS - Diesel - 1997 Hubraum | 215/60R16 |
| C8 2.2 16V - 158 PS - Benzin - 2230 Hubraum | 205/65R15 215/60R16 215/65R15 |
| C8 2.2 HDi - 128 PS - Diesel - 2179 Hubraum | 215/60R16 215/65R15 |
| C8 2.2 HDi - 163 PS - Diesel - 2179 Hubraum | 215/60R16 |
| C8 2.2 HDi - 170 PS - Diesel - 2179 Hubraum | 215/60R16 |
| C8 3.0 V6 Automatik - 204 PS - Benzin - 2946 Hubraum | 215/60R16 |