"It's just all about the cars and having fun," Mr Teki said.
A ramp was set up on the riverbank where a small crowd gathered to watch rocker cover racing. In it rocker covers from V8 cars, adapted into mini vehicles and prepped for speed, raced two at a time down the ramp. The crowd were asked for a gold coin donation, the proceeds going to Hospice Wanganui.
Wellington owners Robbie Ferns and Theresa Ramirez were clearly besotted with their 1957 Chevrolet Bel Air in "tropical turquoise blue".
Mr Ferns said he imported it from North Carolina seven years ago, and it was easy to get parts because they were now being reproduced new.
The weekend's birthday celebration started on Saturday.
To give the visitors a new experience, one of the club members organised for them to be welcomed on to Whangaehu Marae in the morning. Then the group of 200 was treated to a hangi lunch.
After that, and full of food, they went to Turakina Domain for an afternoon of driving games. One of the highlights was tandem motorcycle racing. The club had made up two tandem motorbikes.
"The person in front could only steer. The person at the back could only balance, so it was quite a laugh," Mr Teki said.