Scott Dixon spoiled Team Penske’s party at Road America. [...] his Chip Ganassi Racing team had to fix a faulty fuel cell on the No. 9 Honda that provided nervous moments during warm-ups Sunday. The payoff came a few hours later when Dixon held off Josef Newgarden after a restart with eight laps to go to win the Kohler Grand Prix IndyCar race on the road course at Elkhart Lake, Wis. Dixon’s first victory since Watkins Glen in September was his 41st career win, moving him within one of tying Michael Andretti for third on the list of drivers with the most IndyCar wins. Ganassi had a chance for a weekend sweep with NASCAR points leader Kyle Larson on the pole to start the Toyota/Save Mart 350 in Sonoma, but Kevin Harvick won that race. Penske still had a pretty good day, with pole-sitter Helio Castroneves following teammate Newgarden in third place. Hamilton accused Vettel of “disrespectful” driving after the four-time champion pulled alongside Hamilton and appeared to deliberately swerve into him when they were behind the safety car approaching the midway point of a stop-start race. Valentino Rossi held off Danilo Petrucci to win the TT Assen MotoGP in a thrilling race in Assen, Netherlands, as championship leader Maverick Vinales crashed out and slipped to second in the standings.