Need your input - Ideas on car interiors

[Julioluko]

I'm designing and making an interior of car for friend of mine who is in the process of making an ultralight, he is an engineer for GM and thus has chosen his power train, suspension, and frame. I am making the interior for the car and am going through some designs and features of cars that would be good to include, and since I have a blank canvass to work with I've been going through what features I liked in cars that I've driven. I'm looking for some good designs and features and here is what I got:

Pushbutton start: BMW Z8
Oscillating interior vents: 88' Mazda MX-6 & 626
Gauge Cluster: 94' Chevy Camaro/Firebird
Auto tinting rear view mirror: 86' Pontiac Firebird
110 power outlet (like in Pontiac Vibe) not actual one.


Possibly an interior dash& counsel from a 99' Mitsubishi Eclipse.

Can you think of any other interiors that are really ergonomically designed or neat features, like cup holders, that I could include in it?