I'm not happy about the weight and tire costs of 20" wheels. But I'm hoping that improvements in shock and suspension technology can help manage the detriments to ride quality. Big wheels improve vehicle appearance, which in turn drives sales and profits. So I'll go out on a limb and say that Honda (and other manufacturers) do take steps to counter the negative impact of low-profile-tire ride quality. The Mercedes-Benz S-Class and the Lexus LS come with 50-series tires and I know I wouldn't have to kick them out of the garage for poor ride quality. I'm anxious for test drive reviews of the Passport.