Starts in ‘Neutral’ not ‘Park’ Video
This is one of the most common problems if your car will not start when left in park. It is down to a very small plastic collar the size of a pound coin called an ‘Inhibitor Bush’. This wears out over time and then effects the transmission cable. It is possible to buy the bush (£4.99 as at Dec 15th 2013) and fit yourself by watching this video. Having done it myself it was fairly easy but would have been much easier with car ramps to raise the front off the ground.
Work in progress pics