it is been a long-running saga, but what has prompted the US giant to offload two of the best-known car marques in the world?Slowing the lossesWell, Ford says it has decided to focus on its key products and markets, especially in the USA, so that it can start making a profit again.Ford bought Jaguar in 1989 for ??1.2 billion, and Land Rover in 2000 for ??1.4 billion, bringing them under the wing of