Fred 
2008 Nissan Maxima Sedan 3.5 SE 4dr Sedan (3.5L 6cyl CVT)
CVT is HORRIBLE!!
 This is my 6th Nissan (third Maxima) and my last. There is a constant rumbling vibration felt through the gas pedal and steering wheel between 20-45 mph. Dealer tried couldn't fix it, so rep came and said "this is normal for this transmission". NORMAL!? For a $30,000 car! They tout this new transmission as seamless, which apparently it's not. So, I'm now stuck with it! It's a design flaw Nissan won't admit to.