How so? All of my jouneys are planned to some degree, so within 10 seconds I can adapt the car accordingly for them. If I haven't done it beforehand, then its in the car for a quick change. Surely this is what the SPS is designed for?
You use your car purely for pleasure, every drive is a fun adventure and I'm sure you pick your routes accordingly. I can see why switchable is no real advantage to you to be fair.
Monday to Friday I do exactly the same route, I drive slowly in D as I don't see the point in wasting fuel in boring traffic. I could make it more amusing I suppose by doing lots of overtaking, but what's the point, I doubt I'd be any quicker in the long run gaining a few car lengths and it just serves to annoy others. If I can easily have a map that takes advantage of my commuting mentality and makes the car even more economical, then all the better.
Driving to the 'ring, 600+ miles of crappy motorway - utterly pointless having it in 'balls out' mode following white vans for hour after hour. Once there though, loony mode and the extra fuel saved used for laps!!
Going out for a spirited drive, plug it in, fill yer boots!
Your analogy doesn't really work - altering the map doesn't alter the handling of the car, I can still take a corner at the same speed, it's just slower in a straight line and any road worth driving on is still a 60mph limit.