Mercedes’ power boost for EVs now available as one-time purchase

Mercedes-Benz has walked back an earlier plan to allow owners of certain electric vehicles to unlock maximum performance via subscription only. The automaker on Wednesday said its Acceleration Increase feature for the EQE 350, EQE SUV 350, EQS 450, and EQS SUV 450 will now be offered via subscription or a one-time purchase. The on-demand feature…