"It shows that the Grand Finale will be a tight contest given there was very little separating the qualifiers."
Matt Smith produced the quickest lap time of the day as he blitzed the course in 2min 1.025sec.
The other qualifiers were Faine Kahia, Josh Ritchie, David Fisher, Chaz Holland and Johann Ward; they were all within two seconds of Smith.
Online qualifying remains open until 5pm tomorrow and there's two spots up for grabs.
"Anyone who is thinking about having a crack should definitely register and get involved, this is a great competition," Mutu says.
The Grand Finale will be contested at the Sky City Theatre in Auckland next Tuesday at 7pm.
The eight racers will compete against each other in a 25-lap race around Mt Panorama with a celebrity contest to serve as the curtain-raiser.
The GT Sport NZ Championship will feature the eight fastest racers from across New Zealand as they compete for a $10,000 prize pool.
The live broadcast for the Grand Finale starts at 7pm on Sky Sport and the celebrity curtain raiser will feature crowd favourite athletes from the Warriors, Breakers and the Mystics.
Six Qualifiers from Saturday
Matt Smith - 2:01.025
Faine Kahia - 2:01.050
Josh Ritchie - 2:01.340
David Fisher - 2:01.683
Chaz Holland - 2:01.687
Johann Ward - 2:02.578