My 07 Altima seems to have some type of power issue. If i start from 0mph and press the peddle down a thirdof the way (50kw) and keep it in the same place when the car gets to about 45mph the car kicks the power meter all the way to 0 forcing me to press the peddle down again to get it to stay at 45. It almost feels like it could be the cvt doing something. Feels like shifting from 2nd into 5th - very annoying. Took it to the dealer who told me this is how they work - i dont think so as it wasnt doing it when it was warmer.