The Notorious told a fan on twitter that he is waiting for the Ferrari SF90 Stradale Spider, which comes with a starting price of €443,000 to be delivered.
“I like Lamborghini,” the Dubliner tweeted. “Although I have ordered my first Ferrari, it is in production now. The SF90 Stradale Spider. Can’t wait to get it. Give the Ferrari’s a go!”
The car, of which only 500 have been made available, has a top speed of 211mph and goes from 0-60mph in 2.5 seconds.
The car enthusiast has previously shown off a whole host of flashy and expensive supercars including a €170,000 Bentley Continental GT while on a trip around Dublin.
McGregor is also believed to have a Rolls-Royce Wraith worth around €300k, as well as a Rolls-Royce Dawn (€336k) and Rolls Royce Phantom VIII (€400k).
His latest purchase comes just a few months after McGregor bought a new Lamborghini Super Yacht for around €4million.
The 24-tonne, 19-metre long Lamborghini Tecnomar 63, dubbed the 'Supercar of the Seas' is one of only 63 made in the world and is worth over €3 million.
The former two-weight champion plans to dock the yacht, which was designed and built by the Italian Sea Group and Tecnomar for Lamborghini, in Dun Laoghaire after picking it up in Italy last month.
McGregor's huge 150ft vessel includes stunning features such as a bar and lounge area.
Describing his super yacht's amenities in a tweet, McGregor wrote: "It’s a sea pool yes.
"Can walk the perimeter. Safe for the kids etc.
"Then the slide off the top floor and a Climbing wall up to the middle floor. Jousting platform to duel on.
"And a floating green to shoot golf balls into from off the back of it. Few nice little toys on it I have."
McGregor was named the world's highest paid athlete earlier this year after earning some €160 million in the past year.
The Dubliner also sold a majority share of his whiskey company in a whopping deal said to be worth €500 million a few months ago before his trilogy fight with Dustin Poirier did 1.8 million pay-per-view buys in July.
McGregor has already shelled out €3 million on purchasing and redeveloping his local, the Black Forge in Crumlin.