In the aftermath of the penalty decision that cost Sebastian Vettel victory in the Canadian Grand Prix, many ex-Formula 1 and fellow motorsport pros took to Twitter to offer their views of the situation.

F1 1978 world champion Mario Andretti


F1 1996 world champion Damon Hill


F1 1992 world champion Nigel Mansell


Ex-F1 driver and GPDA chairman Alex Wurz


Ex-F1 driver Mark Webber


Ex-F1 driver Allan McNish


Ex-F1 and current WEC driver Giedo van der Garde


Ex-F1 and current IndyCar driver Max Chilton


IndyCar driver Felix Rosenqvist


Formula E driver Daniel Abt


Two-time BTCC champion Jason Plato


Seven-time NASCAR Cup champion Jimmie Johnson


NASCAR driver and analyst Parker Kligerman


More on the Canadian GP controversy: