I haven't read everything you wrote yet, but I find my 944 to be extremely convient, packing almost every conveinence I want or need. Only thing I wish it had where G force meters. (Longitudal and lateral).
it carries everything I need, has back seats to car four, has a convient readable dash, air condition, heat, etc...
On the SUV/VAN/TRUCK. For my family, getting in and out is easy. In fact, quicker then a car. Generaly, we all get in at different times, but getting out is all at once. With a low car, yuo put your feet out, and pull yourself up. From a E-350, you lean out and jump, and instantly, the next person is disembarking. I'd call that convient.
Hey, we've arrived at Charlotte Int. Airport, and twelve minutes later, where parked, through security, and all luggage in the right places. That would of been harder to acheive from a smaller car. Driving on the way, we arranged all the luggage, so as we jumped out, we where pulling them out, and unloading at the back as well at the same time. From a car, the luggae would of all been in an inaccesable trunk, instead of a large rear door, with inside access as well, so luggage could be pulled from multiple locations at once.
Parking in most places is not soo bad, its mainly length. I learned to drive a 15 passenger van, so the Porsche in comparision seems a little more clumsy backing up. Serious, the 944 has poorer parkinglot awareness of where things are then the van, which has a neat box like shape, with giant mirrors, you realy know where it is.