A Porsche 911 GT3 RS equipped with a Manthey kit has reportedly set a lap time at the Nürburgring, with some outlets citing a time of 6:45. The vehicle has also been tested at other tracks, including Michelin Raceway Road Atlanta, where it set benchmark times. The Manthey kit appears to enhance the 911 GT3's performance capabilities, with reviewers praising its suspension.