So I've noticed a noise that has gradually been getting a little louder over the past 3 trips out in the Ws6. In 2nd gear at WOT, above 4,000 RPM I start to hear a sound coming from under the car that sounds like something rattling. I let off, it goes away. I hit the gas again, it's back. 3rd gear, no sound but I feel a slight hesitation. The hesitation could be all in my head but the sound it definitely there. I'm really hoping I don't have to have the tranny rebuilt. I'm going to drive it to work and have one of the techs look at it. I just hate putting the 88 miles on it necessary to drive it up there. Thanks for any help.