Mr Foster said he'd always been a Ford man, and when the psychologist told him to get a car as a project he agreed - only if he could get one of the brass Model Ts.
He found it and it was kept for him until he got out of hospital after an almost six-month stay.
He's had all the work done to restore it and it's only been in the past few months that he's been able to drive it around.
"It's been good to concentrate on," Mr Foster said.
He said the Model T seemed to really attract people - especially its unique colour which he had come up with.
"Everyone goes to town about the colour. That's my colour."
The ride was one of the oldest at yesterday's show, which also doubled as a fundraiser for St John Ambulance.
Rotorua Vintage Car Club chairman Andy Watson said as well as providing a great day out, the club hoped the event had raised a decent amount of money for the cause.
He said at least 200 vehicles were on display, slightly more than there were at last year's event.
The show had attracted a wide range of spectators from "little kiddies to elderly gentlemen on walking sticks".
One of the most popular vehicles was a replica of the car from the movie Goodbye Pork Pie. As well, "a little Austin" had been a favourite.
"There was everything from your humble Morris Minor to two Rolls Royces."
