Yep. I love the performance of Tesla's cars, but a humble minivan already has (far less attractive) sliding doors with very large openings.

To be fair to Tesla, Elon Musk did address this around two-thirds of the way through his presentation yesterday, saying "when the minivan door is open I can't even get through that space." I suspect he'd also say the Model X's doors provide a vertical opening in addition to a side opening, which can be useful for adults in the second or third row.

On the other hand, I've driven a Honda minivan quite a bit and I can't think of any times when I couldn't squeeze through the available space when the minivan door was open in a parking lot. So there is a bit of solving a problem that may not be very much of one.