The Vorti R is Vredestein's most sporty ultra-high performance summer tire to date. Compared to the Vredestein Ultrac Vorti, the emphasis with the Vorti R lies with ensuring driving precision for the most powerful cars. The Ultrac Vorti R was developed in close cooperation with the Italian design company Giugiaro, and the carbon accents on the tire's sidewall and in the tread are a design feature unique to this tire, the company reports.