Engineers at Polestar have worked on all the engines offered for the model. The power of the base diesel engine has been increased to 200 hp (+10 hp), and torque has been increased to 325 Nm (+30 Nm). The more powerful 235-horsepower diesel has gained 5 horsepower, and the power of the petrol turbo engine has been increased from 320 to 334 hp.

The Polestar tuning house has also reprogrammed the software of the 8-speed automatic transmission to make it more responsive to increased fuel delivery.