Mercedes and McLaren have led the tributes to motorsport pioneer Dan Gurney who has died at the age of 86.
American racer Gurney set a new standard in the 1960s when he became the first driver to win races in Formula One, Indy Car and NASCAR.
During his 11-year F1 career Gurney raced for the likes of Ferrari, Brabham and Porsche - winning his first race with the latter in 1962.
That victory at the French Grand Prix was the first of four F1 wins, while he also triumphed in the 1967 Le Mans 24 Hours.
"We're deeply saddened to hear that motorsport legend Dan Gurney has passed away," Mercedes posted on Twitter.
"The all-American racer was a genius on and off the track. He will be greatly missed."
We are very saddened to hear that US racing pioneer and former McLaren driver, Dan Gurney has passed away. Our thoughts with his family and friends. pic.twitter.com/HkxIwqgazM-- McLaren (@McLarenF1) January 15, 2018
We are saddened to hear of the passing of American racing icon, Dan Gurney. Our thoughts and prayers are with his family and friends. pic.twitter.com/VN057k7XTb-- Haas F1 Team (@HaasF1Team) January 15, 2018
We're deeply saddened to hear that motorsport legend Dan Gurney has passed away. The all-American racer was a genius on and off the track. He will be greatly missed. pic.twitter.com/7HzIPVta8s
-- Mercedes-AMG F1 (@MercedesAMGF1) January 15, 2018