In this movie didn't the driver have to key in a code first and then hit the 'start' button?<p>If this is the case it's theoretically possible but I'd wonder why. Way back when (late 80s) when I was in college I received a car from my parents for my use. I had a device installed (very popular at the time in Boston) that required a code to be input before the car could start. I assume some variation of this is still around probably for older cars that precede coded microchip keys.<p>Whether or not you can find someone who knows if they have to cut into the MOST setup or not and is willing to do it might be a different issue altogether.
The car already requires a code to start. Its just stored in the key instead of typed on a pad.<p>Given the Volvo system, I would say that it is impossible to alter the system to allow a keypad system.