Does the X5 not have "Max eDrive" mode?
With the courtesy X1 (that I've had since October now...) I mainly drive on Max eDrive, so the engine would only kick in if I were to push the throttle past the kickdown switch.
Probably does but by a different name! Its got too damn many modes if you ask me.
I have the following.
Sport (engine on all the time and battery used to boost all time. Full 396bhp available. )
Electric (I think thats the same as the Max eDrive as keeps it in electric unless you put your foot down hard. Kicks engine on if you power past 40% but you have to push the pedal hard, tries to resist starting the motor)
hybrid (regens the battery when coasting in this mode and will slow down. Also regens going downhill) - will kick in the engine at 35% power and above or above 65mph. Easier to get the engine to fire up than electric mode.
hybrid eco (I notice no regen on coasting in this mode, the vehicle will keep its speed up and coast) as above for engine kick in. Supposed to be more economical than hybrid mode. dont think is uses engine and electric together. If you kick down the engine will take over from the battery so you only have 300bhp to play with and as soon as you stop accelerating it will go back to electric (unless you are travelling too fast)
Adaptive (it decides which of the above modes to use subject to conditions and flips between them)
Battery hold (to keep a certain percentage of battery at destination) Will use engine to add charge to the battery if needed.
And anticipatory hybrid drive which then uses the maps if you enter a destination to give you the maximum economy and basically use up all your battery by the time you get to your destination so will use the battery and engine at different points on the route. It also slows down for junctions and roundabouts and regens the battery. Potentially this should be the most economical.
So in all the hybrid modes I can drive the first 7 miles to work without engaging the engine unless I have a heavy foot. I tend to use hybrid or hybrid eco so far.