VIDEO: Formula 1 stars wish Sir Jackie Stewart a happy birthday!

One of the greatest and most legendary drivers in the history of Formula 1, Sir Jackie Stewart, turned 80-years-old on Tuesday. Here, we see a flurry of F1 stars, including Daniel Ricciardo and Romain Grosjean, pay tribute to the man who they describe as a “legend” and a truly “great driver”. Happy birthday Jackie, from GPFans!