Brothers Ricky and Jordan Taylor earned their fourth consecutive IMSA WeatherTech Sportscar Championship victory with a dominant performance at Circuit of the Americas.
Driving the Daytona, Sebring and Long Beach-winning Cadillac DPi-V.R, the Taylors had the edge over their prototype rivals both on-track and in the pit lane during the 2 hour 40 minute contest.
Having taken pole, Ricky Taylor stormed into a comfortable opening lead before a full course caution period after 45 minutes bunched the field back up.
Even with outside variables threatening to conspire against his car, Taylor pulled out another large gap in the green period that followed before handing over to brother Jordan with 52 minutes remaining.
A late caution with seven minutes to go threatened to disturb the order once again, but Taylor responded in the same fashion as his brother by pulling out an 18.885 second gap between himself and the second-placed Action Express Racing Cadillac DPi-V.R of Eric Curran and Dane Cameron.
Curran started and lost second place to Christian Fittipaldi in the sister Action Express during the opening stint, but those roles were reversed following the mandatory driver change when Fittipaldi's car, then with João Barbosa behind the wheel, cut out in the pit lane.
That paved the way for Cameron, who went on to record his and Curran's best result of the season so far in their title-defending year.
Barbosa, meanwhile, ultimately finished third despite his Cadillac's temporary malfunction, courtesy of an impressive recovery drive during the final half hour.
The Portuguese driver started by dispatching Stephen Simpson's ORECA with an overtake, before moving ahead of the #2 ESM Nissan DPi which retired seven minutes from the end with a fiery engine failure.
Fourth overall went to Simpson and team-mate Misha Goikhberg, who were the highest-placed of the global-spec LMP2 entries.
Completing the top five was the sole surviving ESM Nissan DPi driven by Johannes van Overbeek and Ed Brown.
Corvette wins drama-filled GT encounter
In GT Le Mans, Corvette's #3 car benefited from a series of unfortunate events for its rival runners to add a second win to its 2017 tally.
A multi-car incident at the opening corner eliminated half the field from contention, including the sister Corvette, the Risi Competizione Ferrari, and the #912 Porsche.
The #67 Ford GT also suffered damage, and lost eight laps to repairs.
The melee enabled Antonio Garcia and Jan Magnussen to feature predominatly in the top three for the remainder of the race.
Their only other challenges – from the pair of BMW M6s and the only surviving Porsche – dissipated when each BMW was handed a stop-go penalty for separate pit lane infringements and the Porsche rotated following contact with a GTD car.
That all played into the hands of the Corvette duo, who went on to take the chequered flag ahead of two BMWs, driven by Alexander Sims/Bill Auberlen and John Edwards/Martin Tomczyck respectively.
In GT Daytona, Jeroen Bleekemolen stole a march on the tight-knit field to give Mercedes its third straight victory of the 2017 campaign, whilst Performance Tech Motorsports continued its 100% win record in Prototype Challenge.
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