Not exactly on point but to soften the ride, I switched out the run flats for a comfort ride set of Michelins. It rides softer over the bumps and plates in the urban setting. Since we can't go that far, figured if I got a flat, no biggie. Carry an air compressor though just in case.
Jeff in NYC
MB '17 B250e; MB '06 E500W; MB '81 380SL