Mercedes-Benz is to offer an online subscription service in the US to make its electric cars speed up quicker.
For an annual cost of $1,200 (£991) excluding tax, the company will enable some of its vehicles to accelerate from 0-60mph a second faster.
Mercedes has confirmed to BBC News it currently does not plan to introduce "Acceleration Increase" in the UK.
It will be available for purchase in the US on the Mercedes-EQ EQE 350 and EQS 450 vehicles, as well as their SUV counterparts.
According to the Mercedes US online store, the feature "electronically increases" the output of the car's motor, as well as the torque.
All told, it estimates this amounts to a 20-24% increase in output, allowing a Mercedes-EQ 350 SUV to accelerate from 0-60mph in about 5.2 seconds, as opposed to 6.2 seconds without the subscription.