Other ventures
http://www.autosport.com/news/report.php/id/80242
http://www.autosport.com/news/report.php/id/80242
Formula One
http://www.autosport.com/news/report.php/id/80242
http://www.autosport.com/news/report.php/id/80242Die 300 Reichsten – vollständige Liste | BILANZ
https://www.handelszeitung.ch/bilanz/die-300-reichsten/2021/die-300-reichsten-2021
Motorsport
Wayback Machine - Wikipedia
https://en.wikipedia.org/wiki/Wayback_Machinehttp://history.fiagt.com/driverinfo.php?drivername=Toto+Wolff
http://history.fiagt.com/driverinfo.php?drivername=Toto+WolffFIA GT Championship - Driver Biography: Toto Wolff
https://web.archive.org/web/20140728113457/http://history.fiagt.com/driverinfo.php?drivername=Toto+Wolff404 Not Found
http://previous-races.24hseries.com/default.asp?page=369