The X post has since been deleted after it was revealed in reality the car was being delivered to his home.
This was confirmed later on by the driver with multiple pictures of him posing with his fancy new supercar.
Many of the drivers on the current F1 grid live in MonacoThe F1 legend has won the Monaco GP twice in his career so far
F1 legend showcases new car after reports of it breaking down
Fernando Alonso finished P11 at last weekend's Italian GP, as the Aston Martin remained on the edge of scoring points.
However, on Tuesday, the 42-year-old had to respond to a social media post claiming that his new Aston Martin Valkyrie supercar had broken down.
His reply, originally written in Spanish, translated to 'Gaining credibility' with the hashtag 'distantsources' alongside a series of laughing emojis, as Alonso appeared to mock the author for their lack of credibility and use of a false source.
Fernando Alonso sits in ninth place in the drivers' standings with 50 points
Following on from his reply the two-time world champion revealed that his Valkyrie supercar, designed by Adrian Newey, had arrived.
"The day has arrived! I am a proud owner of the best road legal car on the planet. What a privilege to work for this brand," Alonso wrote.
F1's next stop will be Baku, where Alonso will be hoping that his Aston Martin doesn't break down during the Azerbaijan Grand Prix as he looks for a points finish.