i got my car back today and i must say that the clutch is more stiff than befor. it fells more firm and not so spungy. the whole clutch assy. was replaced! here's the weird thing, they could not tell me what caused the problem but they more more than happy to cover it under warrenty. when i asked the the mec. what the problem was all he said was he had to contact nissan befor he could tell me for sure what the problem was. all in all im happy with my new clutch assy. and i wish all 07 owners the best of luck with there car and i hope this clutch problem does'nt become too widespred with the 07's. good luck!