My sister took delivery of her new car from a local well established car dealership at the end of May. Within 2 weeks it developed a fault and had to go back to the workshop. They kept it for several weeks but did supply her with a courtesy car. She had it back for a couple of weeks and it was recalled from teh manufacturers. It was repaired and given back to her. Now it has developed a vibration fault and has switched itself to "limp" mode - juddering and spluttering and generally not suitable to drive. She has asked for them to replace the car as she now has no confidence in it. They have said there isnt another one identical in the country and have offered to build her a "57" plate as they cant supply an "07" but want her to pay extra for it. She doesnt want to do this. Where does she stand?