Hamann presented a tuning package for the 4-Series Gran Coupe. Apart from the new alloy wheels and two lower suspension kits (20mm and 30mm), the tuning firm equips the 4 Series with a front spoiler, diffuser, quad exhaust tailpipes, aluminum pedals, while there are mechanical tuning kits for all the available engines.
- The 418d delivers 174 hp
- The 420d/420d xDrive deliver 216 hp with 440 Nm of torque
- The 430d delivers 295 hp with 605 Nm of torque
- The 435d xDrive produces 335 hp with 695 Nm torque
- The 420i/420i xDrive TwinPower deliver 208 hp with 315 Nm of torque
- The 428i/428i xDrive TwinPower deliver 272 hp with 392 Nm of torque and
- The 435i/435i xDrive TwinPower produce 348 hp with 449 Nm torque.