Runflat Tires
 

Although Bridgestones came with my car, at the dealer only Dunlops are available. Tire Rack sells both.
Anyone compared Bridgestone Dueler H/P Sport RFT with Dunlop SP Sport Maxx DSST RunOnFlat?

No first hand experience but my search showed that Dunlops are more expensive, wear faster and become as noisy if not more when they wear out. Get the Bridgestones

Are they superior handlers or better riding before wearing down?
You would expect something for an extra $700!

It is hard to tell for sure but definitely not better enough to justify the negatives

I had the Dunlops on my 2008 sport with 20's. The Bridgestones are far superior in my opinion including ride noise and wear. But with that said at 17000 miles not sure how much more I'm going to get out of my Bridgestones and when I replace I am going with traditional Michelins either the Diamaris or the Lattitudes.

The Dunlop wears out super fast on a 5,000lbs truck and become noisy