[Kirby64]

If you’re lifting off the throttle enough to activate regen braking, you would be applying the friction brakes in a car as well. Maintaining a steady speed is more efficient than varying speed, but if you have to vary speed then one pedal driving is superior in every way.

If your one pedal driving doesn’t save power, then I would suggest a driver mod.

[jameshart]

You don’t have to use one pedal driving to use regenerative braking in most EVs. They use regenerative braking to effect control inputs on the brake pedal too.

[k8sToGo]

Yes of course. These are very theoretical discussions anyways. In reality one pedal driving is quite awesome.