If everything has to be a skeuomorph of how older people remember things, shouldn't the electric windows be operated by little handles you rotate.
Things progress, people learn new things, some people get left behind, that's always been the case. A simple button to open a door is a perfectly good UI, people know how buttons work, and are familiar with automotive pictograms defining the purpose.
It'll be a touchscreen at some point, with a slider for window height and a selection of different handle designs you can drag to open