First and only post, never even came back to even check....Jealous MB wannabe owner.

My NX350 was not for me, but it certainly wasn't due to road noise.

 

Well, I came from a Cadillac xt4 with 20" hard Continental all seasons. It was nosy and uncomfortable. My new 22 NX350h is a dream compared. I can't believe how quiet and smooth the ride is with the 20" run flat tires. I just hit a curb very hard and no damage was done, unlike the continentals which blew the sidewall out with the same hit. So far I love my run flats!

I guess it all depends on where your coming from.