Hello,
If pictures are worth 1000 words, then moving pictures must be worth... more.
There is a pretty comprehensive compendium of 1955 Oldsmobile TV ads on YouTube here:
http://www.youtube.com/watch?v=iCZ1NAoi86E
They start out with the 1954 models, but if you skip to about 5 minutes and 30 seconds in, the 1955 models will be introduced and described. I think the answers to your questions are in there somewhere.
Might want to make popcorn first. There are a lot of ads.
Mister