5 Most Expensive Cars in the World Infographic: https://grapact.com/5-worlds-most-expensive-cars-in-the-world/

https://www.cnn.com/style/article/ferrari-250-gto-1963-record-sale/index.html (1)

https://www.cnbc.com/2019/08/13/bugattis-18point7m-la-voiture-noire-makes-us-debut-at-pebble-beach.html (2)

https://jalopnik.com/the-17-5-million-pagani-zonda-hp-barchetta-is-the-most-1827896073 (3)

https://www.roadandtrack.com/new-cars/a9954783/this-dollar13-million-rolls-royce-took-four-years-to-build/ (4)

https://robbreport.com/motors/cars/bugatti-unveils-centodieci-hypercar-prototype-1234596906/ (5)