Interesting regarding the ‘B’ mode. I’ve really only used it when going down enormous hills and on my old car, I would pop it into B when I was in and around a town. I’ll pop it into B when I’m next out and keep an eye out to see what happens. Mine is very good at reducing the speed when approaching corners or junctions but on long stretches of roadworks it slows down but is not always so quick to accelerate when they are over. Having said that, my friend has the Enyaq and his is a little erratic with the speed adjustment.