You haven't driven ludicrous have you?
But I haven't had a car with back seat massagers. I guess we both don't know what we are missing.
I did drive insane mode - for a total of 4-5 times; I did not think I needed anything more than what the P85D offered in plain sport mode (which is ballpark similar to what the 100D offers now). When my P85D was totaled I did get a Merc E class. The first thing I start when I drive is the massage. Unlike the BMW version, this actually works. And I love the ambient lighting.
I have a deposit for Porsche Mission E. When it becomes available I will compare it with the model S of that time. I will give Tesla preference if their interior is updated.