To answer, if your moving they move. I was stationary, and the angle of the rain and sunlight made a partial rainbow in our yard. I caught the photo as it was fading.nit was quite brilliant.
May not have been hot, but at least it had style. And with a V8 it wasn't that bad. I had a 71, 6 with a 3 on the tree, could get it rolling from a stop in 3rd and get a chirp in all 3.