However, while Auret and co-driver Paul Barnes only missed the first round in 2018-19, Auret is stepping away for the full season this time after his leg took a hard hit to a post while he was breaking in a young horse.
The injury required surgery and a long rehabilitation, giving Auret a chance to strip his chev-engine truck right down to get it ready for next season.
Of the other Wanganui 4WD club members taking part this year, Kevin Hermansen is in D Class and finished eighth in Whakatane.
Grant Harrison made his comeback to the sport and finished 24th of the 32 trucks in the class.
Leading the series once again is Auckland's Scott Biggs, who has "done the double" by winning both the national series and the Extreme challenge in the last two years.
Second at Whakatane was Taupiri's Greg McDell, while Biggs' brother Jarred Biggs was third.
Rounding out the Top 5 were Dargaville' Aaron Guest and Taupiri's Dave McKie.
The trucks will take to the course tomorrow from 8.30am.