Owners had booked 53 spaces out of a maximum of 60 before the fair started.
However, organisers said they had processed about 70, as new cars filled spaces vacated by sold cars and owners simply drove up to sell during the day.
A total of $768.50 was raised from $20 entry fees per vehicle for sale and the sausage sizzle stall. The proceeds will be donated to the Wakatipu Trails Trust.
A young couple bought the first car from a Queenstown woman and won the voucher for a free service and warrant of fitness as a prize.
A 1994 Mitsubishi Delica van, asking price $3900, a 1996 Mercedes Benz S420 ($9000), a 1979 Holden HQ (offers over $1600), a Jeep Wrangler ($13,000) and a Rover Cabriolet ($10,000) were among the machines lined up for sale.
Buyers, sellers and browsers said they welcomed the one-stop shop in Queenstown and approved of reducing the number of cars for sale on the district's roadsides.
Senior Queenstown couple June and Jim Thompson were celebrating the sale of their Ford Laser, after 27 years of ownership, to a Cromwell man.
The Thompsons said they had three vintage cars and were not using the Laser.
"I didn't expect anyone would be interested in it," Mrs Thompson said. "We had quite a few offers but his was the best . . .I think [the fair] is a jolly good idea, considering you can't park and sell on the road.
"It certainly looks as though people have attended it."
Ross McFaul, of Invercargill, displayed three original, imported Ford Mustangs, priced between $26,000 and $33,000 each.
He said he had missed the Classic Car and Hot Rod Festival, in Cromwell, but heard about the Queenstown Car Fair instead.
"We're not too worried if they sell or not. I've had a few people looking, but not to buy because they're classics.
"I think it's a good idea to get the cars [for sale] off the street and it's good to talk with car enthusiasts."
The fair was organised by Jodie and Sean Squires, co-directors of Queenstown automotive workshop World Cars Ltd.
They marshalled the event and manned the sausage sizzle.
Three of their mechanics offered a vehicle inspection for $70. Mr Squires said they would consider how the fair went and listen to feedback this week.
"The goal was to keep the streets less car sale-ish. If everything's OK, I'd like to think we'd do it again on a monthly basis."
