I'm certain something could be programed to open the windows and unlock the doors if the lock is unlocked for x>set time.

hmm

I can write a program for this in C.

if the key is held at lock position for longer than set time it goes into a routine of opening windows and sunroof. You can trigger this with a magnet on the shaft for the door locks.

when the magnet is in front of the sensor for lock it closes windows and such.. unlock opens , etc.

its doable. You're just going to have to write some code, rewire the window circuit for it to work and troubleshoot.

or you could just buy a car with it, but where is the fun in that?

(my '94 has the feature.. it's awesome, I just wish it would put the top down too)