Actually I use a shuttlebus to and from Hazelhatch station. I would not be bothered driving - it saves me a fortune in petrol and carparking charges. I also arrived relaxed for work in the mornings, rather than frazzeled if I drove to work, or arrived in an over crowded bus.
It works there but I don't see it working across the board. Train/bus passengers are very different people.
Anyway didn't you give up getting the train or have they tempted you to stay...