Winterbottom confirmed there was no significant damage to his car and he'll be ready to roll for the next round at the Gold Coast in a fortnight.
Teammate Chaz Mostert, who missed last year's race after a serious crash in practice, looked a genuine contender for the first half of the race but things went astray when he lost 30 seconds to the leaders after brake pressure didn't come up on his exit lap after a pad change.
In the final quarter of the race Mostert's Supercheap Ford only operated at about 80% throttle and he fell out of contention.
"Those things happen, it's Bathurst," Mostert said. "It can be great one day, bad the next. This year is still better than last year's Bathurst. This time last year I was still in a hospital bed so it was just fantastic to get my confidence back up around here and to make the top 10 shootout; there were a lot of positives.
"I was really happy with the car this weekend. I think it definitely had podium pace in it there towards the end. It's a bit of a shame but we'll truck on."
The Monster Energy Ford of Cam Waters and Jack LeBrocq finished an impressive fourth in the only good news for the Ford outfit.