On Wednesday, the 26-year-old drove one of the original Mercedes cars that participated in the 1924 Targa Florio, a race won by the German marque.
The Brit did so en route to collecting the Trofeo Bandini Award before this weekend's Emilia Romagna Grand Prix.
"It has been amazing to get behind-the-wheel of a 100-year-old Mercedes," said George.
"It's a car that you expect to be sitting in a museum for people to admire, rather than being driven. Being entrusted with its first public outing since its restoration was a real honour, therefore."
"The way it drove was exceptional. The noise was fantastic and the handling through the corners, considering the narrow tyres, was very impressive. It was a real joy to get the chance to drive it, so I want to say a huge thank you to the Mercedes-Benz Classic team.
"Collecting the Trofeo Bandini Award was also a true privilege. So many great F1 drivers have won this award so it was an honour to add my name to that list. It has been a brilliant day and I'm excited for the rest of the weekend in Imola."