Hello Oz,
I like the tire size that is now on my car it is 185/70 14R they are Michelin White Walls and look just right on my car. When I inittially went to one of the largest tire dealers here in town the manager confirmed the year made and told me the tires are no longer made (I knew this only was shocked that my tires are 15 years old).
I gave him the size that Bud's Benz put on a 280 SL a short while ago Hancock 195/75 14R and he ordered them for me. When they arrived we compared them against the ones now on my car. They looked much too big to us so we send them back. When you compare them un-infladed and not mounted they do look big. Perhaps they would have been okay once mounted, however, I decided to get the 185/70 14R since I like the look of my car with that size of tire. 4 of my 5 Uniroyal tiger tires are in town, just waiting for the 5th one to arrive then I will have them mounted.
I cannot believe I drove to Williamsburg, Virginia two years ago on the then 13 year old tires on US Interstate Highways trying to follow Alex and sometimes the Red Rocket at speeds over 70 MPH. I know I will feel safer traveling to PUB 2015
Oz, I think the choice of type and tire size is basically a personal choice, I know my speedometer is slightly off and that is okay, then I have a good GPS that tells me posted speed limits and gives me the exact MPH or Km/PH I am driving. After a while one knows what speed one goes by just keeping an eye on the RPM readout