The classic car cruise, an initiative of the Grampians Grease Monkeys Hotrod Club, was run to help local couple Ash Hustler and Paige Mills, whose daughter Sophie Hustler was born on October 9, 2013 at the Royal Women's Hospital with hypo plastic left heart syndrome, small left ventricle and aortic stenosis.

Hotrod Club member Mark Rudolph said the convoy spent the day travelling across the region, beginning in Ararat, before lunch in Pomonal and concluding in Stawell.

"We were very pleased with the turn out, it attracted 80-plus cars from everywhere from Mount Gambier, Portland, Swan hill, Ballarat, Geelong, Horsham - all over!" he said.

Various businesses donated items that were raffled during the day, while an auction featuring car related pieces was held at the Stawell Pickers' Market.

Mr Rudolph said while the total raised from the event was still being calculated early approximations were close to $4000.

Funds raised will help the Hustler family cover the costs of Sophie's medical expenses and other living demands.

"They were absolutely thrilled and quite overwhelmed to be honest," Mr Rudolph said.

"The whole thing was just outstanding, everyone can't believe how well it all went off."

"There were such a variety of vehicles. We had hot rods, Corvettes, Porsches, Volkswagens, Holdens, there was something there to please everyone.

"I'd just like to thank all the people that attended from the local community and the businesses and people who donated goods and services."