Floyd Mayweather is already spending his new fortune -- dropping millions on a brand new red Bugatti, TMZ Sports has learned.
We spoke with Floyd's car guy Obi Okeke -- aka Doctor Bugatti -- who tells us Floyd hit him up 2 days ago to purchase a "triple red" 2012 Bugatti Grand Sport Convertible.
Obi says the car is "one of one" -- and while he wouldn't reveal the exact price, told us it usually runs around $3 MILLION.
We're told Floyd wanted the car to make a splash on his way to the weigh in for the McGregor fight Friday afternoon.