5 engine variants available
| Engine | Fuel | BHP Std | BHP Tuned | BHP Gain | Torque Std | Torque Tuned | Torque Gain | Suitability | Profile |
|---|---|---|---|---|---|---|---|---|---|
| 420i 184hpUnder review | Petrol | 184 | 250 | +66(36%) | 300 | 440 | +140(47%) | Good (6.5/10) | Torque-focused |
| 420d 190hp | Diesel MHEV | 190 | 220 | +30(16%) | 400 | 480 | +80(20%) | Moderate (5/10) | Balanced |
| 430i 258hp | Petrol | 258 | 287 | +29(11%) | 400 | 450 | +50(13%) | Moderate (4.5/10) | Balanced |
| M440d 340hp | Diesel MHEV | 340 | 380 | +40(12%) | 700 | 750 | +50(7%) | Limited (3.5/10) | Power-focused |
| M440i 374hp | Petrol MHEV | 374 | 420 | +46(12%) | 500 | 575 | +75(15%) | Moderate (4.5/10) | Balanced |
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