I dropped the run flats on my e70 and bought myself a full set of General Grabbers, I have had their tyres on my Mitsubishi trucks previously and have proved to be a good tyre. It's only recently that I found out that General are actually part of the Continental group. The ride has improved immensely since putting them on, road noise is no worse, but when driving over a bumpy road, my fillings don't rattle anymore.