I have had my freelander for 3 weeks now, we have just been away. On the way back on the motorway i noticed it was spewing out black smoke from the exhust, also the engine didnt seem as powerful when i excelarated. Does this mean the exhust has blown, or could it be another problem? Also will it be safee to drive to get it fixed? Sorry for the stupid questions, but I havent a clue about these sorts of things!!!