There are solutions already available for almost each one of your proposals,they are not massively adopted though.
You can open/lock your car with an App in your iPhone, there you have the touchId.
Seats with many features like massaging, cooling, heating, several adjustments for lumbar support and stiffness. What you described is more like one of those overpriced and expensive sleep number mattresses, how much more are you willing to it for it?
Laminated glass panels with adjustable light thru are here already in some Mercedes and the glas panel only as I recalled it costs around 3000 euros for a single pane roof, you have to add the controller and other costs to it.
HMI in the auto industry changed significantly in the last 10 years.
maybe the brands and models you are used to see haven't, but generalizing the whole industry is not accurate.
What are your preferred car brands and models?
There are many areas of opportunities and indeed the auto industry is not as fast as the consumers electronics industry, but saying that no changes in the last 10 years isn't right.