"It was pretty hair-raising stuff, although the truck is pretty sturdy. We couldn't compete after the roll. It had even pushed the roll cage out of shape. Lucky for us it didn't happen in the middle of the series because we would have struggled to make up the points."
Auret said he and Barnes were "okay" until the mishap.
"We were doing all right in the morning session - just okay really, but to be honest we'd been waiting all season for a roll like this. Winning the national title has been an eight-year plan, upgrading vehicles and getting the driver/co-driver mix right. Barnsey is a top co-driver and I couldn't have done it without him.
"We are only the second Wanganui crew to have won the national title. Dan Cowper has won it a couple of times and, ironically, he's the man who built our truck," Auret said.
While the season is now complete, Auret and Barnes won't be resting on their laurels with a major invitational meeting coming up in six weeks here in Wanganui. The pair will be among 15 of the country's top trucks competing in the Suzuki Extreme 4x4 Challenge, an invitational event on May 31 that will be televised for an hour-long segment on TV3's CRC Motorpsort Show. Auret will be seeded No1 for the event.
Meanwhile, an Australian 4x4 television crew filmed the Thames final, although Auret was unsure where or when that would be aired.