He also clinched pole position for the 2014 Great Race for Tekno, only to suffer a heartbreaking car failure 24 hours later while challenging for the victory.
Aboard his orange and black McLaren, Van Gisbergen's stunning pole lap had an average speed of 184.41km/h.
The pace was always going to be hot in qualifying, but the New Zealander blew expectations out of the water to set a lap time almost a full second quicker than the previous year's pole time.
Pole was secured, and with it, the Allan Simonsen Trophy, which pays tribute to the late Danish driver who lost his life in an accident at Le Mans in 2013.
"It was amazing, I've never been close to that around here," van Gisbergen said after his scintillating lap.
"To win the Allan Simonsen Trophy... if he was still here he'd be fighting for pole. It's a big honour to win this trophy."
A day later, van Gisbergen combined with Jonathon Webb and Alvaro Parente to win a fiercely competitive race, marking his first victory in the once-round-the-clock enduro.
However, despite his record pace on Saturday, nothing was handed on a platter to van Gisbergen and the #59 crew.
Parente lost almost a minute in his first stint after he was forced to reset the car's electrical systems. Later, the #59 was slapped with a black flag penalty for speeding in the pit lane during the pit stop in which Webb handed over to van Gisbergen.
With two hours remaining, the #59’s hopes hung by a thread, and van Gisbergen pushed the car to its limits to ensure minimal time was lost.
His gutsy efforts paid off; after serving the penalty, the #59 remained on the lead lap courtesy of the time he had made.
With just over 90 minutes remaining, van Gisbergen pitted for a top up of fuel during the 13th Safety Car period.
The previous year's winner, Nissan's Katsumasa Chiyo, led fourth-placed van Gisbergen by 12 seconds.
Van Gisbergen claimed the lead from Chiyo with just 50 minutes remaining on lap 273 when the Nissan completed its last stop for the day.
The Japanese driver rejoined in second position and was 12.7 seconds adrift of the #59.
The tension was palpable. One driver was looking to go back-to-back on the mountain, while the other was in the lead, looking to capitalise on the McLaren's brilliant pace.
With sixteen minutes left, Chiyo set the fastest lap for his Nissan entry of the entire race.
With 10 minutes remaining, though, the gap was still 12 seconds, van Gisbergen going blow for blow.
Not content with second, Chiyo, who was co-driving with 2006 Supercars champion Rick Kelly, pushed even harder and cut the gap to eight seconds.
When they commenced the final lap, Chiyo was just five seconds behind.
However, van Gisbergen clung on to seal a famous victory, albeit by a meagre 1.27s, Chiyo falling short of a remarkable comeback effort.
In a race of attrition, only 21 entries were classified as finishers after 37 started the race 12 hours earlier.
The race saw a record 29 lead changes, with eight different entries holding the race lead at some point across the day.
The battle with Chiyo drew eerie similarities to van Gisbergen's Bathurst 1000 triumph last year, when the Holden driver defied a race-long challenge from Tickford Racing's Cameron Waters. To then, though, we all new what van Gisbergen was capable of.