Hi everyone, I have a 94 E320 with 90K miles one owner car that has always been Dealer maintained. Transmission seems tight and no odd noises or quirks other than at about 60mph or above, when I press the accelerator...well...Floor it actually, there is an almost slipping feeling like it is not catching the downshift. If I speed up slowly, there is no issue. What in the world could cause this? I have no idea. Thanks in advance for any help!