CO₂ emissions: 20 of 56 variants rated.
Citroen XM Break V6 tops the Citroen XM ranking by CO₂ emissions, at 284 g/km.
Across 20 ranked variants, CO₂ emissions spans from 190 g/km to 284 g/km.
| # | Variant | Year | Body | Fuel | CO₂ emissions |
|---|---|---|---|---|---|
| 1 | Citroen XM Break V6 | 1997 | Wagon | Petrol | 284 g/km |
| 2 | Citroen XM V6 | 1997 | Hatchback | Petrol | 284 g/km |
| 3 | Citroen XM V6 Exclusive | 1997 | Hatchback | Petrol | 284 g/km |
| 4 | Citroen XM Break Turbo C.T. | 1997 | Wagon | Petrol | 265 g/km |
| 5 | Citroen XM Turbo C.T. | 1997 | Hatchback | Petrol | 265 g/km |
| 6 | Citroen XM Break V6 | 1997 | Wagon | Petrol | 260 g/km |
| 7 | Citroen XM V6 | 1997 | Hatchback | Petrol | 260 g/km |
| 8 | Citroen XM V6 Exclusive | 1997 | Hatchback | Petrol | 260 g/km |
| 9 | Citroen XM 2.0i | 1997 | Hatchback | Petrol | 253 g/km |
| 10 | Citroen XM Break 2.0i | 1997 | Wagon | Petrol | 251 g/km |
| 11 | Citroen XM Break Turbo C.T. | 1997 | Wagon | Petrol | 248 g/km |
| 12 | Citroen XM Turbo C.T. | 1997 | Hatchback | Petrol | 248 g/km |
| 13 | Citroen XM Break 2.1 Turbo D | 1997 | Wagon | Diesel | 233 g/km |
| 14 | Citroen XM Break 2.0i | 1997 | Wagon | Petrol | 229 g/km |
| 15 | Citroen XM 2.0i | 1997 | Hatchback | Petrol | 229 g/km |
| 16 | Citroen XM 2.1 Turbo D | 1997 | Hatchback | Diesel | 227 g/km |
| 17 | Citroen XM Break 2.5 Turbo D | 1997 | Wagon | Diesel | 206 g/km |
| 18 | Citroen XM 2.5 Turbo D | 1997 | Hatchback | Diesel | 206 g/km |
| 19 | Citroen XM Break 2.1 Turbo D | 1997 | Wagon | Diesel | 190 g/km |
| 20 | Citroen XM 2.1 Turbo D | 1997 | Hatchback | Diesel | 190 g/km |