Echo the sentiments of others. This is something we used to do when driving regularly from Yorkshire to Kent when we had a BMW 330e. We don't bother with the NX because, a) it still operates efficiently as a "standard" hybrid at 30% charge and b) there is a 'performance' hit when in chg mode, if you need to accelerate to join a motorway or overtake, you will not get much return for your right foot depression other than noise from the e-cvt so you need to be prepared for switching modes.