I've had my ID.4 for about a week and a half now, and I pop it into 'B' mode right away every time, since that is much closer to how my Zoe drives. I have been wondering though, assuming you drive the same with in both D and B (lift off the accelerator at the same time, same amount of braking, etc.), do you get the same amount of regen in both modes? Using the brakes in 'D' gives the same amount of regen as slowing in 'B', doesn't it?