Had to share this, it was actually recommended by someone on a Saab Forum.
My 75 got "water marks" on the bodywork when rain was dried off by the sun which had to be t cut back to get it out.
Wax did not good so I asked if I could seal the paint work to stop the contact between paint and water.
Got recommended Wolf Chemical Body Wrap, with a chemical clean of the paint first.
So got on it last weekend , and am blown away by the results! Not only has it cured the water marks its given the car a mad shine with no swirl marks or calky resedue I used to get with wax!
You clean the body work off with the chemical then put the sealer on wait 15 mins and simply buff off, well simple and check the result out! Highly recommended!