Auckland's Starship Hospital has received $2000 raised by Tui Headquarters' Mangatainoka Motors event.
Donor partnerships team member Sarah Woodhams said Starship had received the money on February 4.
"I am delighted to confirm that the $2000 so generously donated by Tui Brewery yesterday will go toward the Starship national air ambulance service," Ms Woodhams said.
The air ambulance service flies top medical experts to life-threatening emergencies around the country. Once children are stabilised they are taken to Starship.
Vintage and classic cars and motorbike owners paid $15 to register in the annual display and were judged by Tui girls in nine different categories.