GMC Creates the World’s Biggest Tweet to Promote Its 2021 GMC Yukon

270 football fields could fit inside the design

The only way to capture it was via helicopter at just above 12,000 feet GMC/Twitter

GMC didn’t just go big to promote its next-generation 2021 GMC Yukon: It went world’s biggest.

@9Number9 David Cohen is editor of Adweek's Social Pro Daily.