they were installed on the liquid carbon demo that I drove. I have to be honest that I didn't love the look. There aren't any other matte features on the car and I didn't dig it. A gloss or gloss/machined would be a much better look I think. Visually, they also make the brakes look small so I won't be going that route on my car. I'll either get another set of the 18's or a similar styled 18" aftermarket set for my winter tires. I have a weird pet peeve with wheels that I want my spokes to have periodic symmetry. In other words, I don't like when the wheels swoop on one side and slice on the other like the 19's do.
Performance wise, the 19" tires I drove on were Goodyear Eagles, and they rode with more sidewall compliance than I expected, but still noticeably crashier over harsh bumps than the 18's. The adaptive suspension in Comfort mode does a lot to minimize their effect. I liked these tires better than the ContiPro Contacts that come with the 18's for performance but like the extra sidewall look and feel of the 18's for the majority of driving I'll be doing.
Performance wise, the 19" tires I drove on were Goodyear Eagles, and they rode with more sidewall compliance than I expected, but still noticeably crashier over harsh bumps than the 18's. The adaptive suspension in Comfort mode does a lot to minimize their effect. I liked these tires better than the ContiPro Contacts that come with the 18's for performance but like the extra sidewall look and feel of the 18's for the majority of driving I'll be doing.