Ricky Taylor headed up a one-two for the Cadillac DPi-V.R. chassis during qualifying for the Long Beach round of the IMSA WeatherTech Sportscar Championship.
The Wayne Taylor Racing driver clinched his team's first pole position of 2017 with a time of 1:13.549s at the short 1.9 mile street circuit in California.
Taylor and team-mate Jordan Taylor are aiming to scoop their third consecutive win of the season following victories at the Daytona and Sebring endurance classics.
The brothers are also vying for their third straight win at the Long Beach event, having topped both free practice sessions prior to clinching pole ahead of the 100-minute contest on Saturday afternoon.
"We came here motivated as we won the first two big races," said pole-man Taylor.
"I think this is the most valuable pole of the year, as track position is so important here."
"We have won here the last two years [but] this year is going to be tougher. There are more cars on the track with the addition of the GTD cars."
"Last year I had to make a move on Christian [Fittipaldi] for the lead into Turn 1, so pole is a vulnerable position here. I will have to have a good start."
"This is our first street race with the Cadillac DPi-V.R. Cadillac has done a great job with car. The confidence it gives you in the seat is just incredible."
Christian Fittipaldi finished second quickest during the 15-minute qualifying run, with the Action Express Racing driver pedalling his Cadillac DPi to a 1:13.75s marker, 0.204 seconds shy of Taylor.
The result marked the second front-row grid lockout for Cadillac in three races, despite a third successive wave of performance cuts imposed by IMSA curtailing the acceleration speed of the DPi-V.R. prototype against its rivals.
Tristan Nunez completed a 1-2-3 for IMSA's new DPi formula behind the wheel of the #55 Mazda.
Nunez wound up just over half a second off the pace, and 0.280 seconds ahead of the best-placed LMP2 entry driven by JDC-Miller Motorsports driver Misha Goikhberg.
Rounding out the top five in Protoype was Eric Curran, driving the second of two Action Express Racing Cadillac DPi cars.
In GT Le Mans, Jan Magnussen headed up a close-knit qualifying session that featured all five manufacturers in the top five places.
Driving the Sebring-winning Corvette C7.R, Magnussen turned in a 1:16.909s effort to top the class timesheets by 0.092 seconds from Joey Hand in the quickest Ford GT.
Hand, in turn, was only four-hundredths faster than Toni Vilander's Ferrari 488, with all eight GTLM cars fitting under a blanket of 0.578 seconds.
The top five was completed by Laurens Vanthoor in the #912 Porsche 911 RSR and Bill Auberlen in the #24 BMW M6.
Parity amongst manufacturers was shared by the GT Daytona category on its first appearance at the Long Beach weekend.
Bryan Sellers headed up an eclectic qualifying table in the Paul Miller Racing Lamborghini Huracan GT3 as five different badges represented the top six places.
Sellers gave Lamborghini its first pole position of 2017 with a 1:19.243s run, staving off former IndyCar driver Jack Hawksworth in the #15 Lexus RCF-GT3 by 0.033 seconds.
