Speed rating affects handling, the lower the speed rating, the lower the handling. You make the choice. Here is a good write up
http://answers.yahoo.com/question/index?qid=20091018171217AA81Uyg I searched around the web and came up with the same answer, speed rating of a tire is important. It is your choice and of course lower speed rated tires are less money. When I want to save money I drive my Ford Focus. I just couldn't justify saving money on my SL. My current tires are the lower speed rating. I was way less educated when I purchased them. I cannot afford $1000.00 for tires at this point. If anyone finds a 205/70/14 with an H speed rating for a good price I would like to know.
After my research it is going to be a hard decision at tire time. Those Vredstiens just look so cool. Maybe I will sell some parts to get those way to expensive tires. But, lets do some research, there must be a less costly alternative that meets our cars requirements.
And yes, I don't think anyone is going to go over 120MPH, but my research shows that low speed handling is greatly affected by speed rating also, and I really like to take the curves in my car in a spirited way every now and then and when someone runs that stop sign I really want to avoid the crash as best as possible.
Maybe at the next Blacklick get together a comparison could be made side by side. My guess is that just about every W113 out there has underrated tires just because of the availability issue of our required size.