I have an 05 3 s and when i go to start it up in the cold weather it barely starts up. My brother drives a 96 maxima and it starts up right away. I live in southern NY and it doesn't get brutally cold but when it does my car is the only car in the driveway that doesn't start up right away and if i don't let it warm up the engine kicks everytime it upshifts. I always let it warm up but i would like to know if anyone else has had this problem.